Chapter 68

÷ constant, ÷ function (Math.), a quantity of function that is introduced into the solution of a problem, and to which any value or form may at will be given, so that the solution may be made to meet special requirements. Ð ÷ quantity (Math.), one to which any value can be assigned at pleasure. Ar¶biÏtrate (?), v. t. [imp. & p. p. Arbitrated (?); p. pr. & vb. n. Arbitrating (?).] [L. arbitratus, p. p. of arbitrari to be a hearer or beholder of something, to make a decision, to give judgment, fr. arbiter. See Arbiter.] 1. To hear and decide, as arbitrators; as, to choose to arbitrate a disputed case. 2. To decide, or determine generally. South. There shall your swords and lances arbitrate The swelling difference of your settled hate. Shak. Ar¶biÏtrate (?), v. i. 1. To decide; to determine. Shak. 2. To act as arbitrator or judge; as, to arbitrate upon several reports;; to arbitrate in disputes among heighbors; to arbitrate between parties to a suit. Ar·biÏtra¶tion (?), n. [F. arbitration, L. arbitratio, fr. arbitrari.] The hearing and determination of a cause between parties in controversy, by a person or persons chosen by the parties. µ This may be done by one person; but it is usual to choose two or three called arbitrators; or for each party to choose one, and these to name a third, who is called the umpire. Their determination is called the award. Bouvier ÷ bond, a bond which obliges one to abide by the award of an ~. Ð ÷ of Exchange, the operation of converting the currency of one country into that of another, or determining the rate of exchange between such countries or currencies. An arbitrated rate is one determined by such ~ through the medium of one or more intervening currencies. Ar¶biÏtra·tor (?), n. [L., fr. arbitrari: cf. F. arbitrateur.] 1. A person, or one of two or more persons, chosen by parties who have a controversy, to determine their differences. See Arbitration. 2. One who has the power of deciding or prescribing without control; a ruler; a governor. Though Heaven be shut, And Heaven's high Arbitrators sit secure. Milton. Masters of their own terms and arbitrators of a peace. Addison. Syn. - Judge; umpire; referee; arbiter. See Judge. Ar¶biÏtra·trix (?), n. [L., fem. of arbitrator.] A female who arbitrates or judges. Ar¶biÏtress (?), n. [From Arbiter.] A female arbiter; an arbitratrix. Milton.

Ar¶blast (?), n. A crossbow. See Arbalest. Ar¶bor (?), n. [OE. herber, herbere, properly a garden of herbs, F. herbier, fr. L. herbarium. See Herb, and cf. Herbarium.] A kind of latticework formed of, or covered with, vines, branches of trees, or other plants, for shade; a bower. Sir P. Sidney. Ar¶bor, n. [Written also arbour.] [L., a tree, a beam.] 1. (Bot.) A tree, as distinguished from a shrub. 2. [Cf. F. arbre.] (Mech.) (a) An axle or spindle of a wheel or opinion. (b) A mandrel in lathe turning. Knight. ÷ Day, a day appointed for planting trees and shrubs. [U.S.] Ar¶boÏraÏry (?), a. [L. arborarius, fr. arbor tree.] Of or pertaining to trees; arboreal. Ar¶boÏra·tor (?), n. [L., fr. arbor tree.] One who plants or who prunes trees. [Obs.] Evelyn. Ø Ar¶bor DiÏa¶n‘ (?). [L., the tree of Diana, or silver.] (Chem.) A precipitation of silver, in a beautiful arborescent form. ArÏbo¶reÏal (?), a. 1. Of or pertaining to a tree, or to trees; of nature of trees. Cowley. 2. Attached to, found in or upon, or frequenting, woods or trees; as, arboreal animals. Woodpeckers are eminently arboreal. Darwin. Ar¶bored (?), a. Furnished with an arbor; lined with trees. ½An arboreal walk.¸ Pollok. ArÏbo¶reÏous (?), a. [L. arboreous, fr. arbor tree.] 1. Having the form, constitution, or habits, of a proper tree, in distinction from a shrub. Loudon. 2. Pertaining to, or growing on, trees; as, arboreous moss. Quincy. Ar·boÏres¶cence (?), n. The state of being arborescent; the resemblance to a tree in minerals, or crystallizations, or groups of crystals in that form; as, the arborescence produced by precipitating silver. Ar·boÏres¶cent (?), a. [L. arborescens, p. pr. of arborescere to become a tree, fr. arbor tree.] Resembling a tree; becoming woody in stalk; dendritic; having crystallizations disposed like the branches and twigs of a tree. ½Arborescent hollyhocks.¸ Evelyn. Ar¶boÏret (?), n. [OF. arboret, dim. of arbre tree, L. arbor] A small tree or shrub. [Obs.] Spenser. Among thickÐwoven arborets, and flowers Imbordered on each bank. Milton. Ø Ar·boÏre¶tum (?), n.; pl. Arboreta (?). [L., a place grown with trees.] A place in which a collection of rare trees and shrubs is cultivated for scientific or educational purposes. ArÏbor¶icÏal (?), a. Relating to trees. [Obs.] ArÏbor¶iÏcole (?), a. [L. arbor + colere to inhabit.] (Zo”l.) TreeÐinhabiting; Ð said of certain birds. Ar·borÏiÏcul¶turÏal (?), a. Pertaining to arboriculture. Loudon. Ar·borÏiÏcul¶ture (?; 135), n. [L. arbor tree + cultura. See Culture.] The cultivation of trees and shrubs, chiefly for timber or for ornamental purposes. Ar·borÏiÏcul¶turÏist, n. One who cultivates trees. ArÏbor¶iÏform (?), a. Treelike in shape. Ar¶borÏist (?), n. [F. arboriste, fr. L. arbor tree.] One who makes trees his study, or who is versed in the knowledge of trees. Howell. Ar·borÏiÏza¶tion (?), n. [Cf. F. arborisation, fr. L. arbor tree.] The appearance or figure of a tree or plant, as in minerals or fossils; a dendrite. Ar¶borÏized (?), a. Having a treelike appearance. ½An arborized or moss agate.¸ Wright. Ar¶borÏous (?), a. Formed by trees. [Obs.] From under shady, arborous roof. Milton. Ar¶bor vine· (?). A species of bindweed. Ø Ar¶bor vi¶t‘ (?). [L., tree of life.] 1. (Bot.) An evergreen tree of the cypress tribe, genus Thuja. The American species is the T. occidentalis. 2. (Anat.) The treelike disposition of the gray and white nerve tissues in the cerebellum, as seen in a vertical section. Ar¶busÏcle (?), n. [L. arbuscula small tree, shrub, dim. of arbor tree.] A dwarf tree, one in size between a shrub and a tree; a treelike shrub. Bradley. ArÏbus¶cuÏlar (?), a. Of or pertaining to a dwarf tree; shrublike. Da Costa. ArÏbus¶tive (?), a. [L. arbustivus, fr. arbustum place where trees are planted.] Containing copses of trees or shrubs; covered with shrubs. Bartram. Ar¶buÏtus (?), Ar¶bute (?), } n. [L. arbutus, akin to arbor tree.] The strawberry tree, a genus of evergreen shrubs, of the Heath family. It has a berry externally resembling the strawberry; the arbute tree. Trailing arbutus (Bot.), a creeping or trailing plant of the Heath family (Epig‘a repens), having white or usually roseÐcolored flowers with a delicate fragrance, growing in small axillary clusters, and appearing early in the spring; in New England known as mayflower; Ð called also ground laurel. Gray. Arc (?), n. [F. arc, L. arcus bow, ~. See Arch, n.] 1. (Geom.) A portion of a curved line; as, the arc of a circle or of an ellipse. 2. A curvature in the shape of a circular ~ or an arch; as, the colored arc (the rainbow); the arc of Hadley's quadrant. 3. An arch. [Obs.] Statues and trophies, and triumphal arcs. Milton. 4. The apparent ~ described, above or below the horizon, by the sun or other celestial body. The diurnal arc is described during the daytime, the nocturnal arc during the night. Electric ~, Voltaic ~. See under Voltaic. ArÏcade¶ (?), n. [F. arcade, Sp. arcada, LL. arcata, fr. L. arcus bow, arch.] 1. (Arch.) (a) A series of arches with the columns or piers which support them, the spandrels above, and other necessary appurtenances; sometimes open, serving as an entrance or to give light; sometimes closed at the back (as in the cut) and forming a decorative feature. (b) A long, arched building or gallery. 2. An arched or covered passageway or avenue. ArÏcad¶ed (?), a. Furnished with an arcade. ArÏca¶diÏa (?), n. [L. Arcadia, Gr. ?.] 1. A mountainous and picturesque district of Greece, in the heart of the Peloponnesus, whose people were distinguished for contentment and rural happiness. 2. Fig.: Any region or scene of simple pleasure and untroubled quiet. Where the cow is, there is Arcadia. J. Burroughs. ArÏca¶diÏan (?), ArÏca¶dic (?), } a. [L. Arcadius, Arcadicus, fr. Arcadia: cf. F. Arcadien, Arcadique.] Of or pertaining to Arcadia; pastoral; ideally rural; as, Arcadian simplicity or scenery. ArÏcane¶ (?), a. [L. arcanus.] Hidden; secret. [Obs.] ½The arcane part of divine wisdom.¸ Berkeley. Ø ArÏca¶num (?), n.; pl. Arcana (?). [L., fr. arcanus closed, secret, fr. arca chest, box, fr. arcere to inclose. See Ark.] 1. A secret; a mystery; Ð generally used in the plural. Inquiries into the arcana of the Godhead. Warburton. 2. (Med.) A secret remedy; an elixir. Dunglison. Ø Arc·Ïbou·tant¶ (?), n. [F.] (Arch.) A flying buttress. Gwilt. Arch (?), n. [F. arche, fr. LL. arca, for arcus. See Arc.] 1. (Geom.) Any part of a curved line. 2. (Arch.) (a) Usually a curved member made up of separate wedgeÐshaped solids, with the joints between them disposed in the direction of the radii of the curve; used to support the wall or other weight above an opening. In this sense arches are segmental, round (i. e., semicircular), or pointed. (b) A flat arch is a member constructed of stones cut into wedges or other shapes so as to support each other without rising a curve. µ Scientifically considered, the ~ is a means of spanning an opening by resolving vertical pressure into horizontal or diagonal thrust. 3. Any place covered by an ~; an archway; as, to pass into the arch of a bridge. 4. Any curvature in the form of an ~; as, the arch of the aorta. ½Colors of the showery arch.¸ Milton. Triumphal ~, a monumental structure resembling an arched gateway, with one or more passages, erected to commemorate a triumph. Arch, v. t. [imp. & p. p. Arched (?); p. pr. & vb. n. Arching.] 1. To cover with an ~ or arches. 2. To form or bend into the shape of an ~. The horse arched his neck. Charlesworth. Arch, v. i. To form into an arch; to curve.

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ArchÏ („rchÏ, except in archangel and one or two other words). [L. archÏ, Gr. ???. See ArchÏ.] A prefix signifying chief, as in archbuilder, archfiend. Arch (?), a. [See ArchÏ, pref.] 1. Chief; eminent; greatest ; principal. The most arch act of piteous massacre. Shak. 2. Cunning or sly; sportively mischievous; roguish; as, an arch look, word, lad. [He] spoke his request with so arch a leer. Tatler. Arch, n. [See ArchÏ, pref.] A chief. [Obs.] My worthy arch and patron comes toÐnight. Shak. Ïarch (?). [Gr. ? chief, commander, ? to rule. See Arch, a.] A suffix meaning a ruler, as in monarch (a sole ruler). ArÏch‘¶an (?), a. [Gr. ? ancient, fr. ? beginning.] Ancient; pertaining to the earliest period in geological history. ArÏch‘¶an, n. (Geol.) The earliest period in geological period, extending up to the Lower Silurian. It includes an Azoic age, previous to the appearance of life, and an Eozoic age, including the earliest forms of life. µ This is equivalent to the formerly accepted term Azoic, and to the Eozoic of Dawson. Ar·ch‘Ïog¶raÏphy (?), n. [Gr. ? ancient + Ïgraphy.] A description of, or a treatise on, antiquity or antiquities. Ar·ch‘ÏoÏlith¶ic (?), a. [Gr. ? ancient + ? pertaining to a stone.] (Arch‘ol.) Of or pertaining to the earliest Stone age; Ð applied to a prehistoric period preceding the Paleolithic age. Ar·ch‘ÏoÏlo¶giÏan (?), n. An arch‘ologist. Ar·ch‘ÏoÏlog¶ic (?), Ar·ch‘ÏoÏlog¶icÏal (?), } Relating to arch‘ology, or antiquities; as, arch‘ological researches. Ð Ar·Ïch‘ÏoÏlog¶icÏalÏly, adv. Ar·ch‘Ïol¶oÏgist (?), n. One versed in arch‘ology; an antiquary. Wright. Ar·ch‘Ïol¶oÏgy (?), n. [Gr. ?; ? ancient (fr. ? beginning) + ? discourse, ? to speak.] The science or study of antiquities, esp. prehistoric antiquities, such as the remains of buildings or monuments of an early epoch, inscriptions, implements, and other relics, written manuscripts, etc. Ø Ar·ch‘Ïop¶teÏryx (?), n. [Gr. ? ancient + ? wing.] (Paleon.) A fossil bird, of the Jurassic period, remarkable for having a long tapering tail of many vertebr‘ with feathers along each side, and jaws armed with teeth, with other reptilian characteristics. Ar·ch‘ÏoÏstom¶aÏtous (?), a. [Gr. ? ancient + ? mouth.] (Biol.) Applied to a gastrula when the blastorope does not entirely up. Ar·ch‘ÏoÏzo¶ic (?), a. [Gr. ? ancient + ? animal.] (Zo”l.) Like or belonging to the earliest forms of animal life. ArÏcha¶ic (?), a. [Gr. ? oldÐfashioned, fr. ? ancient.] Of or characterized by antiquity or archaism; antiquated; obsolescent. ArÏcha¶icÏal (?), a. Archaic. [R.] Ð ArÏcha¶icÏalÏly, adv. Ar¶chaÏism (?), n. [Gr. ?, fr. ? ancient, fr. ? beginning: cf. F. archa‹sme. See Arch, a.] 1. An ancient, antiquated, or oldÐfashioned, word, expression, or idiom; a word or form of speech no longer in common use. 2. Antiquity of style or use; obsoleteness. A select vocabulary corresponding (in point of archaism and remoteness from ordinary use) to our Scriptural vocabulary. De Quincey. Ar¶chaÏist, n. 1. Am antiquary. 2. One who uses archaisms. Ar·chaÏis¶tic (?), a. Like, or imitative of, anything archaic; pertaining to an archaism. Ar¶chaÏize (?), v. t. [imp. & p. p. Archaized (?); p. pr. & vb. n. Archaizing.] [Gr. ?.] To make appear archaic or antique. Mahaffy. Arch·an¶gel (?), n. [L. archangelus, Gr. ?: cf. OF. archangel, F. archange. See ArchÏ, pref., and Angel.] 1. A chief angel; one high in the celestial hierarchy. Milton. 2. (Bot.) A term applied to several different species of plants (Angelica archangelica, Lamium album, etc.). Arch·anÏgel¶ic (?), a. [Cf. F. archang‚lique.] Of or pertaining to archangels; of the nature of, or resembling, an archangel. Milton.

Arch·bish¶op (?), n. [AS. arcebisceop, arcebiscop, L. archiepiscopus, fr. Gr. ?. See Bishop.] A chief bishop; a church dignitary of the first class (often called a metropolitan or primate) who superintends the conduct of the suffragan bishops in his province, and also exercises episcopal authority in his own diocese. Arch·bish¶opÏric (?), n. [AS. arcebiscoprÆce. See Ïric.] The jurisdiction or office of an archbishop; the see or province over which archbishop exercises archiepiscopal authority. Arch¶ brick· (?). A wedgeÐshaped brick used in the building of an arch. Arch·but¶ler (?), n. [Pref. archÏ + butler.] A chief butler; Ð an officer of the German empire. Arch·cham¶berÏlain (?), n. [Cf. G. erzk„mmerer. See ArchÏ, pref.] A chief chamberlain; Ð an officer of the old German empire, whose office was similar to that of the great chamberlain in England. Arch·chan¶celÏlor (?), n. [Cf. Ger. erzkanzler. See ArchÏ, pref.] A chief chancellor; Ð an officer in the old German empire, who presided over the secretaries of the court. Arch·chem¶ic (?), a. Of supreme chemical powers. [R.] ½The archchemic sun.¸ Milton.

Arch·dea¶con (?), n. [AS. arcediacon, archidiacon, L. archidiaconus, fr. Gr. ?. See ArchÏ, pref., and Deacon.] In England, an ecclesiastical dignitary, next in rank below a bishop, whom he assists, and by whom he is appointed, though with independent authority. Blackstone. Arch·dea¶conÏry, n. The district, office, or residence of an archdeacon. See Benefice. Every diocese is divided into archdeaconries. Blackstone. Arch·dea¶conÏship, n. The office of an archdeacon. Arch·di¶oÏcese (?), n. [Pref. archÏ + diocese.] The diocese of an archbishop. Arch·du¶cal (?), a. Of or pertaining to an archduke or archduchy. Arch·duch¶ess (?), n. [Pref. archÏ + duchess.] The consort of an archduke; also, a princess of the imperial family of Austria. See Archduke. Arch·duch¶y, n. The territory of an archduke or archduchess. Ash. Arch·duke¶ (?), n. [Pref. archÏ + duke.] A prince of the imperial family of Austria. µ Formerly this title was assumed by the rulers of Lorraine, Brabant, Austria, etc. It is now appropriated to the descendants of the imperial family of Austria through the make line, all such male descendants being styled archduke, and all such female descendants archduchesses. Arch·duke¶dom (?), n. An archduchy. Ø Ar·cheÏbiÏo¶sis (?), n. [Pref. archeÏ ? archiÏ + Gr. ?, ?, life.] To origination of living matter from nonÐliving. See Abiogenesis. Bastian. Arched (?), a. Made with an arch or curve; covered with an arch; as, an arched door. Ar·cheÏgo¶niÏal (?), a. Relating to the archegonium. Ø Ar·cheÏgo¶niÏum (?), n. [NL., fr. Gr. ? the first of a race.] (Bot.) The pistillidium or female organ in the higher cryptogamic plants, corresponding to the pistil in flowering plants. ArÏcheg¶oÏny (?), n. [See Archegonium.] (Biol.) Spontaneous generation; abiogenesis. ArÏchel¶oÏgy (?), n. [Gr. ? an element or first principle + Ïlogy.] The science of, or a treatise on, first principles. Fleming. Ø Ar·chenÏceph¶aÏla (?), n. pl. [NL., fr. Gr. pref. ? + ? the brain.] (Zo”l.) The division that includes man alone. R. Owen. Arch·en¶eÏmy (?), n. [Pref. archÏ = enemy.] A principal enemy. Specifically, Satan, the grand adversary of mankind. Milton. Arch·enÏter¶ic (?), a. (Biol.) Relating ? the archenteron; as, archenteric invagination. Ø Arch·en¶terÏon , n. [Pref. archÏ + Gr. ? intestine.] (Biol.) The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under Invagination. Ar·cheÏol¶oÏgy (?), n., Ar·cheÏoÏlog·icÏal (?), a. Same as Arch‘ology, etc. Arch¶er (?), n. [OF. archier, F. archer, LL. arcarius, fr. L. arcus bow. See Arc, Arch, n.] A bowman, one skilled in the use of the bow and arrow. Arch¶erÏess (?), n. A female archer. Markham. Arch¶er fish· (?). (Zo”l.) A small fish (Toxotes jaculator), of the East Indies; Ð so called from ?? ejecting drops of water from its mouth at its prey. The name is also applied to Ch‘todon rostratus. Arch¶erÏship, n. The art or skill of an archer. Arch¶erÏy (?), n. [OE. archerie.] 1. The use of the bow and arrows in battle, hunting, etc.; the art, practice, or skill of shooting with a bow and arrows. 2. Archers, or bowmen, collectively. Let all our archery fall off In wings of shot aÐboth sides of the van. Webster (1607). Arch¶es (?), pl. of Arch, n. Court of ÷, or ÷ Court (Eng. Law), the court of appeal of the Archbishop of Canterbury, whereof the judge, who sits as deputy to the archbishop, is called the Dean of the Arches, because he anciently held his court in the church of St. MaryÐleÐBow (de arcubus). It is now held in Westminster. Mozley & W. Ar¶cheÏty·pal (?), a. Of or pertaining to an archetype; consisting a model (real or ideal) or pattern; original. ½One archetypal mind.¸ Gudworth. µ Among Platonists, the archetypal world is the world as it existed as an idea of God before the creation. Ar¶cheÏty·palÏly, adv. With reference to the archetype; originally. ½Parts archetypally distinct.½ Dana. Ar¶cheÏtype (?), n. [L. archetypum, Gr. ?, fr. ? stamped first and as model; ? ? + ? stamp, figure, pattern, ? to strike: cf. F. arch‚type. See ArchÏ, pref.] 1. The original pattern or model of a work; or the model from which a thing is made or formed. The House of Commons, the archetype of all the representative assemblies which now meet. Macaulay. Types and shadows of that glorious archetype that was to come into the world. South. 2. (Coinage) The standard weight or coin by which others are adjusted. 3. (Biol.) The plan or fundamental structure on which a natural group of animals or plants or their systems of organs are assumed to have been constructed; as, the vertebrate archetype. Ar·cheÏtyp¶icÏal (?), a. Relating to an archetype; archetypal. Ø ArÏche¶us (?), n. [LL. arch?us, Gr. ? ancient, primeval, fr. ? beginning. See ArchiÏ, pref.] The vital principle or force which (according to the Paracelsians) presides over the growth and continuation of living beings; the anima mundi or plastic power of the old philosophers. [Obs.] Johnson. Ar¶chiÏ (?). [L., archiÏ, Gr. ?, a prefix which is from the same root as ? to be first, to begin; ? the first place, beginning; ? chief. Cf. AS. arceÏ, erceÏ, OHG. erziÏ.] A prefix signifying chief, arch; as, architect, archiepiscopal. In Biol. and Anat. it usually means primitive, original, ancestral; as, archipterygium, the primitive fin or wing. Ø Ar·chiÏanÏnel¶iÏda (?), n. pl. [NL.; pref. archiÏ + annelida.] (Zo”l.) A group of Annelida remarkable for having no external segments or distinct ventral nerve ganglions. Ar¶chiÏa·ter (?), n. [L. archiatrus, Gr. ?; pref. ? + ? physician, ? to heal.] Chief physician; Ð a term applied, on the continent of Europe, to the first or body physician of princes and to the first physician of some cities. P. Cyc. Ø Ar·chiÏblas¶tuÏla (?), n. [Pref. archi + blastula.] (Biol.) A hollow blastula, supposed to be the primitive form; a c?loblastula. Ar¶chiÏcal (?), a. [Gr. ? able to govern, fr. ? beginning, government. See ArchÏ, pref.] Chief; primary; primordi?.] [Obs.] Cudworth. Ar·chiÏdiÏac¶oÏnal (?), a. [L. archidiaconus, Gr. ?, equiv. to E. archdeacon.] Of or pertaining to an archdeacon. This offense is liable to be censured in an archidiaconal visitation. Johnson. Ar·chiÏeÏpis¶coÏpaÏcy (?), n. [Pref. archiÏ + episcopacy.] 1. That form of episcopacy in which the chief power is in the hands of archbishops. 2. The state or dignity of an archbishop. Ar·chiÏeÏpis¶coÏpal (?), a. [Pref. archiÏ + episcopal.] Of or pertaining to an archbishop; as, Canterbury is an archiepiscopal see. Ar·chiÏeÏpis·coÏpal¶iÏty (?), n. The station or dignity of an archbishop; archiepiscopacy. Fuller. Ar·chiÏeÏpis¶coÏpate (?), n. [Pref. archiÏ + episcopate.] The office of an archbishop; an archbishopric. Ø ArÏchi¶eÏrey (?), n. [Russ. archier‚i, fr. Gr. ?; pref. ? (E. archÏ) + µ priest.] The higher order of clergy in Russia, including metropolitans, archbishops, and bishops. Pinkerton. Ar¶chil (?; 277), n. [OF. orchel, orcheil, It. orcella, oricello, or OSp. orchillo. Cf. Orchil.] 1. A viole?dye obtained from several species of lichen (Roccella tinctoria, etc.), which grow on maritime rocks in the Canary and Cape Verd Islands, etc. Tomlinson. 2. The plant from which the dye is obtained. [Written also orchal and orchil.] Ar·chiÏlo¶chiÏan (?), a. [L. Archilochius.] Of or pertaining to the satiric Greek poet Archilochus; as, Archilochian meter. Ar¶chiÏmage (?), Ø Ar·chiÏma¶gus (?), } n. [NL.; pref. archiÏ + L. magus, Gr. ?, a Magian.] 1. The high priest of the Persian Magi, or worshipers of fire. 2. A great magician, wizard, or enchanter. Spenser. Ar·chiÏman¶drite (?), n. [L. archimandrita, LGr. ?; pref. ? (E. archÏ) + ? an inclosed space, esp. for cattle, a fold, a monastery.] (Gr. Church) (a) A chief of a monastery, corresponding to abbot in the Roman Catholic church. (b) A superintendent of several monasteries, corresponding to superior abbot, or father provincial, in the Roman Catholic church. Ar·chiÏmeÏde¶an (?), a. [L. Archimedeus.] Of or pertaining to Archimedes, a celebrated Greek philosopher; constructed on the principle of Archimedes' screw; as, Archimedean drill, propeller, etc. ÷ screw, or Archimedes' screw, an instrument, said to have been invented by Archimedes, for raising water, formed by winding a flexible tube round a cylinder in the form of a screw. When the screw is placed in an inclined position, and the lower end immersed in water, by causing the screw to revolve, the water is raised to the upper end. Francis. Ø Ar·chiÏme¶des (?), n. (Paleon.) An extinct genus of Bryzoa characteristic of the subcarboniferous rocks. Its form is that of a screw. Arch¶ing (?), n. 1. The arched part of a structure. 2. (Naut.) Hogging; Ð opposed to sagging. Ar·chiÏpeÏlag¶ic (?), a. Of or pertaining to an archipelago. Ar·chiÏpel¶aÏgo , n.; pl. Ïgoes or Ïgos (?). [It. arcipelago, properly, chief sea; Gr. pref ? + ? sea, perh. akin to ? blow, and expressing the beating of the waves. See Plague.] 1. The Grecian Archipelago, or ’gean Sea, separating Greece from Asia Minor. It is studded with a vast number of small islands. 2. Hence: Any sea or broad sheet of water interspersed with many islands or with a group of islands.

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