Chapter 24

volume of sound, etc., by forcing a stream of air upon the strings. Moore. Ð ’olian harp, ’olian lyre, a musical instrument consisting of a box, on or in which are stretched strings, on which the wind acts to produce the notes; Ð usually placed at an open window. Moore. Ð ’olian mode (Mus.), one of the ancient Greek and early ecclesiastical modes. ’Ïol¶ic (?), a. [L. Aeolicus; Gr. ?.] ’olian, 1; as, the ’olic dialect; the ’olic mode. ’Ïol¶iÏpile, ’Ïol¶iÏpyle } (?), n. [L. aeolipilae; Aeolus god of the winds + pila a ball, or Gr. ? gate (i. e., doorway of ’olus); cf. F. ‚olipyle.] An apparatus consisting chiefly of a closed vessel (as a globe or cylinder) with one or more projecting bent tubes, through which steam is made to pass from the vessel, causing it to revolve. [Written also eolipile.] µ Such an apparatus was first described by Hero of Alexandria about 200 years b. c. It has often been called the first steam engine. ’·oÏloÏtrop¶ic (?), a. [Gr. ? changeful + ? a turning, ? to turn.] (Physics) Exhibiting differences of quality or property in different directions; not isotropic. Sir W. Thomson. ’·oÏlot¶roÏpy (?), n. (Physics) Difference of quality or property in different directions. Ø ’¶oÏlus (?), n. [L., fr. Gr. ?.] (Gr. & Rom. Myth.) The god of the winds. ’¶on (?), n. A period of immeasurable duration; also, an emanation of the Deity. See Eon. ’Ïo¶niÏan (?), a. [Gr. ?.] Eternal; everlasting. ½’onian hills.¸ Tennyson. Ø ’·pyÏor¶nis (?), n. [Gr. ? high + ? bird.] A gigantic bird found fossil in Madagascar. A¶‰rÏate (?), v. t. [imp. & p. p. A?rated (?); p. pr. & vb. n. A?rating (?).] [Cf. F. a‚rer. See Air,v. t.] 1. To combine or charge with gas; usually with carbonic acid gas, formerly called fixed air. His sparkling sallies bubbled up as from a‰rated natural fountains. Carlyle. 2. To supply or impregnate with common air; as, to a‰rate soil; to a‰rate water. 3. (Physiol.) To expose to the chemical action of air; to oxygenate (the blood) by respiration; to arterialize. A‰rated bread, bread raised by charging dough with carbonic acid gas, instead of generating the gas in the dough by fermentation. A·‰rÏa¶tion (?), n. [Cf. F. a‚ration.] 1. Exposure to the free action of the air; airing; as, a‰ration of soil, of spawn, etc. 2. (Physiol.) A change produced in the blood by exposure to the air in respiration; oxygenation of the blood in respiration; arterialization. 3. The act or preparation of charging with carbonic acid gas or with oxygen. A¶‰rÏa·tor (?), n. That which supplies with air; esp. an apparatus used for charging mineral waters with gas and in making soda water. Aω¶riÏal (?), a. [L. a‰rius. See Air.] 1. Of or pertaining to the air, or atmosphere; inhabiting or frequenting the air; produced by or found in the air; performed in the air; as, a‰rial regions or currents. ½A‰rial spirits.¸ Milton. ½A‰rial voyages.¸ Darwin. 2. Consisting of air; resembling, or partaking of the nature of air. Hence: Unsubstantial; unreal. 3. Rising aloft in air; high; lofty; as, a‰rial spires. 4. Growing, forming, or existing in the air, as opposed to growing or existing in earth or water, or underground; as, a‰rial rootlets, a‰rial plants. Gray. 5. Light as air; ethereal. ÷ acid, carbonic acid. [Obs.] Ure. Ð ÷ perspective. See Perspective. Aω·riÏal¶iÏty (?), n. The state of being a‰rial; ?nsubstantiality. [R.] De Quincey. Aω¶riÏalÏly (?), adv. Like, or from, the air; in an a‰rial manner. ½A murmur heard a‰rially.¸ Tennyson. Ae¶rie (?; 277), n. [OE. aire, eire, air, nest, also origin, descent, OF. aire, LL. area, aera, nest of a bird of prey, perh. fr. L. area an open space (for birds of prey like to build their nests on flat and open spaces on the top of high rocks). Cf. Area.] The nest of a bird of prey, as of an eagle or hawk; also a brood of such birds; eyrie. Shak. Also fig.: A human residence or resting place perched like an eagle's nest. A·‰rÏif¶erÏous (?), a. [L. a‰r air + Ïferous: cf. F. a‚rifŠre.] Conveying or containing air; airÐbearing; as, the windpipe is an a‰riferous tube. A·‰rÏiÏfiÏca¶tion (?), n. [Cf. F. a‚rification. See A?rify.] 1. The act of combining air with another substance, or the state of being filled with air. 2. The act of becoming a‰rified, or of changing from a solid or liquid form into an a‰riform state; the state of being a‰riform. A¶‰rÏiÏform (?; 277), a. [L. a‰r air + Ïform: cf. F. a‚riforme.] Having the form or nature of air, or of an elastic fluid; gaseous. Hence fig.: Unreal. A¶‰rÏiÏfy (?), v. t. [L. a‰r air + Ïfly.] 1. To infuse air into; to combine air with. 2. To change into an a‰riform state. A¶‰rÏoÏ. [Gr. ?, ?, air.] The combining form of the Greek word meaning air. A¶‰rÏoÏbies (?), n. pl. [A‰roÏ + Gr. ? life.] (Biol.) Micro?rganisms which live in contact with the air and need oxygen for their growth; as the microbacteria which form on the surface of putrefactive fluids. A·‰rÏoÏbiÏot¶ic (?; 101), a. (Biol.) Related to, or of the nature of, a‰robies; as, a‰robiotic plants, which live only when supplied with free oxygen. A¶‰rÏcyst (?), n. [A‰roÏ + cyst.] (Bot.) One of the air cells of algals. A¶‰rÏoÏdyÏnam¶ic (?), a. Pertaining to the force of air in motion. A·‰rÏoÏdyÏnam¶ics (?), n. [A‰roÏ + dynamics: cf. F. a‚rodynamique.] The science which treats of the air and other gaseous bodies under the action of force, and of their mechanical effects. A·‰rÏog¶noÏsy (?), n. [A‰roÏ + Gr. ? knowing, knowledge: cf. F. a‚rognosie.] The science which treats of the properties of the air, and of the part it plays in nature. Craig. A·‰rÏog¶raÏpher (?), n. One versed in a‰ography: an a‰rologist. A·‰rÏoÏgraph¶ic (?), A·‰rÏoÏgraph¶icÏal (?), } a. Pertaining to a‰rography; a‰rological. A·‰rÏog¶raÏphy (?), n. [A‰roÏ + Ïgraphy: cf. F. a‚rographie.] A description of the air or atmosphere; a‰rology. A·‰rÏoÏhy·droÏdyÏnam¶ic (?), a. [A‰roÏ + hydrodynamic.] Acting by the force of air and water; as, an a‰rohydrodynamic wheel. A¶‰rÏoÏlite (?), n. [A‰roÏ + Ïlite: cf. F. a‚rolithe.] (Meteor.) A stone, or metallic mass, which has fallen to the earth from distant space; a meteorite; a meteoric stone. µ Some writers limit the word to stony meteorites. A¶‰rÏoÏlith (?), n. Same as A?rolite. A·‰rÏoÏliÏthol¶oÏgy (?), n. [A‰roÏ + lithology.] The science of a‰rolites. A·‰rÏoÏlit¶ic (?), a. Of or pertaining to a‰rolites; meteoric; as, a‰rolitic iron. Booth. A·‰rÏoÏlog¶ic (?), A·‰rÏoÏlog¶icÏal (?), } a. Of or pertaining to a‰rology. A·‰rÏol¶oÏgist (?), n. One versed in a‰rology. A·‰rÏol¶oÏgy (?), n. [A‰roÏ + Ïlogy: cf. F. a‚rologie.] That department of physics which treats of the atmosphere. A¶‰rÏoÏman·cy (?), n. [A‰roÏ + Ïmancy: cf. F. a‚romancie.] Divination from the state of the air or from atmospheric substances; also, forecasting changes in the weather. A·‰rÏom¶eÏter (?), n. [A‰roÏ + Ïmeter: cf. F. a‚romŠtre.] An instrument for ascertaining the weight or density of air and gases. A·‰rÏoÏmet¶ric (?), a. Of or pertaining to a‰rometry; as, a‰rometric investigations. A·‰rÏom¶eÏtry (?), n. [A‰roÏ + Ïmetry: cf. F. a‚rom‚trie.] The science of measuring the air, including the doctrine of its pressure, elasticity, rarefaction, and condensation; pneumatics. A¶‰rÏoÏnaut (?; 277), n. [F. a‚ronaute, fr. Gr. ? air + ? sailor. See Nautical.] An a‰rial navigator; a balloonist. A·‰rÏoÏnaut¶ic (?), A·‰rÏoÏnaut¶icÏal (?), } a. [Cf. F. a‚ronauitique.] Pertaining to a‰ronautics, or a‰rial sailing. A·‰rÏoÏnaut¶ics (?), n. The science or art of ascending and sailing in the air, as by means of a balloon; a‰rial navigation; ballooning. Ø A·‰rÏoÏpho¶biÏa (?), A·‰rÏoph¶oÏby (?), } n. [A‰roÏ + Gr. ? fear: cf. F. a‚rophobie.] (Med.) Dread of a current of air. A¶‰rÏoÏphyte (?), n. [A‰roÏ + Gr. ? plant, ? to grow: cf. F. a‚rophyte.] (Bot.) A plant growing entirely in the air, and receiving its nourishment from it; an air plant or epiphyte. A¶‰rÏoÏplane· (?), n. [A‰roÏ + plane.] A flying machine, or a small plane for experiments on flying, which floats in the air only when propelled through it. A¶‰rÏoÏscope (?), n. [A‰roÏ + Gr. ? to look out.] (Biol.) An apparatus designed for collecting spores, germs, bacteria, etc., suspended in the air. A·‰rÏos¶coÏpy (?), n. [A‰roÏ + Gr. ? a looking out; ? to spy out.] The observation of the state and variations of the atmosphere. ’Ïrose¶ (?), a. [L. aerosus, fr. aes, aeris, brass, copper.] Of the nature of, or like, copper; brassy. [R.] A·‰rÏoÏsid¶erÏite (?), n. [A‰roÏ + siderite.] (Meteor.) A mass of meteoric iron. A¶‰rÏoÏsphere (?), n. [A‰roÏ + sphere: cf. F. a‚rosphŠre.] The atmosphere. [R.] A¶‰rÏoÏstat (?), n. [F. a‚rostat, fr. Gr. ? air + ? placed. See Statics.] 1. A balloon. 2. A balloonist; an a‰ronaut. A·‰rÏoÏstat¶ic (?), A·‰rÏoÏstat¶icÏal (?), } a. [A‰roÏ + Gr. ?: cf. F. a‚rostatique. See Statical, Statics.] 1. Of or pertaining to a‰rostatics; pneumatic. 2. A‰ronautic; as, an a‰rostatic voyage. A·‰rÏoÏstat¶ics (?), n. The science that treats of the equilibrium of elastic fluids, or that of bodies sustained in them. Hence it includes a‰ronautics. A·‰rÏosÏta¶tion (?), n. [Cf. F. a‚rostation the art of using a‰rostats.] 1. A‰rial navigation; the art of raising and guiding balloons in the air. 2. The science of weighing air; a‰rostatics. [Obs.] ’Ïru¶giÏnous (?), a. [L. aeruginosus, fr. aerugo rust of copper, fr. aes copper: cf. F. ‚rugineux.] Of the nature or color of verdigris, or the rust of copper. Ø ’Ïru¶go (?), n. [L. aes brass, copper.] The rust of any metal, esp. of brass or copper; verdigris. Ae¶ry (?), n. An aerie. A¶‰rÏy (?), a. [See Air.] A‰rial; ethereal; incorporeal; visionary. [Poetic] M. Arnold. ’s·cuÏla¶piÏan (?), a. Pertaining to ’sculapius or to the healing art; medical; medicinal. ’s·cuÏla¶piÏus (?), n. [L. Aesculapius, Gr. ?.] (Myth.) The god of medicine. Hence, a physician. ’s¶cuÏlin (?), n. Same as Esculin. ’Ïso¶piÏan, EÏso¶piÏan (?), a. [L. Aesopius, from Gr. ?, fr. the famous Greek fabulist ’sop (?).] Of or pertaining to ’sop, or in his manner. ’Ïsop¶ic, EÏsop¶ic (?), a. [L. Aesopicus, Gr. ?.] Same as ’sopian. Ø ’sÏthe¶siÏa (?), n. [Gr. ? sensation, fr. ? to perceive.] (Physiol.) Perception by the senses; feeling; Ð the opposite of an‘sthesia. ’aÏthe·siÏom¶eÏter, EsÏthe·siÏom¶eÏter (?), n. [Gr. ? (see ’sthesia) + Ïmeter.] An instrument to measure the degree of sensation, by determining at how short a distance two impressions upon the skin can be distinguished, and thus to determine whether the condition of tactile sensibility is normal or altered. Ø ’sÏthe¶¶sis (?), n. [Gr. ?.] Sensuous perception. [R.] Ruskin. ’s·theÏsod¶ic (?), a. [Gr. ? sensation + ? a way; cf. F. esth‚sodique.] (Physiol.) Conveying sensory or afferent impulses; Ð said of nerves. ’s¶thete (?), n. [Gr. ? one who perceives.] One who makes much or overmuch of ‘sthetics. [Recent] ’sÏthet¶ic (?), ’sÏthet¶icÏal (?), } a. Of or Pertaining to ‘sthetics; versed in ‘sthetics; as, ‘sthetic studies, emotions, ideas, persons, etc. Ð ’sÏthet¶icÏalÏly, adv. ’s·theÏti¶can (?), n. One versed in ‘sthetics. ’sÏthet¶iÏcism (?), n. The doctrine of ‘sthetics; ‘sthetic principles; devotion to the beautiful in nature and art. Lowell. ’sÏthet¶ics, EsÏthet¶ics (?; 277), n. [Gr. ? perceptive, esp. by feeling, fr. ? to perceive, feel: cf. G. „sthetik, F. esth‚tique.] The theory or philosophy of taste; the science of the beautiful in nature and art; esp. that which treats of the expression and embodiment of beauty by art. ’s·thoÐphys·iÏol¶oÏgy (?), n. [Gr. ? to perceive + E. physiology.] The science of sensation in relation to nervous action. H. Spenser. ’s¶tiÏval (?), a. [L. aestivalis, aestivus, fr. aestas summer.] Of or belonging to the summer; as, ‘stival diseases. [Spelt also estival.] ’s¶tiÏvate (?), v. i. [L. aestivare, aestivatum.] 1. To spend the summer. 2. (Zo”l.) To pass the summer in a state of torpor. [Spelt also estivate.] ’s·tiÏva¶tion (?), n. 1. (Zo”l.) The state of torpidity induced by the heat and dryness of summer, as in certain snails; Ð opposed to hibernation. 2. (Bot.) The arrangement of the petals in a flower bud, as to folding, overlapping, etc.; prefloration. Gray. [Spelt also estivation.] ’s¶tuÏaÏry (?; 135), n. & a. See Estuary. ’s¶tuÏous (?), a. [L. aestuosus, fr. aestus fire, glow.] Glowing; agitated, as with heat. Aω·theÏog¶aÏmous (?), a. [Gr. ? unusual (? priv. + ? custom) + ? marriage.] (Bot.) Propagated in an unusual way; cryptogamous. ’¶ther (?), n. See Ether. ’¶thiÏops min¶erÏal (?). (Chem.) Same as Ethiops mineral. [Obs.] ’th¶oÏgen (?), n. [Gr. ? fire, light + Ïgen.] (Chem.) A compound of nitrogen and boro?, which, when heated before the blowpipe, gives a brilliant phosphorescent; boric nitride. ’¶thriÏoÏscope (?), n. [Gr. ? clear + ? to observe.] An instrument consisting in part of a differential thermometer. It is used for measuring changes of temperature produced by different conditions of the sky, as when clear or clouded. ’·tiÏoÏlog¶icÏal (?), a. Pertaining to ‘tiology; assigning a cause. Ð ’·tiÏoÏlog¶icÏalÏly, adv. ’·tiÏol¶oÏgy (?), n. [L. aetologia, Gr. ?; ? cause + ? description: cf. F. ‚tiologie.] 1. The science, doctrine, or demonstration of causes; esp., the investigation of the causes of any disease; the science of the origin and development of things. 2. The assignment of a cause. Ø A·‰Ïti¶tes (?), n. [L., fr. Gr. ? (sc. ?) stone, fr. ? eagle.] See Eaglestone. AÏfar¶ (?), adv. [Pref. aÏ.(for on or of) + far.] At, to, or from a great distance; far away; Ð often used with from preceding, or off following; as, he was seen from afar; I saw him afar off. The steep where Fame's proud temple shines afar. Beattie. AÏfeard¶ (?), p. a. [OE. afered, AS. ¾f?red, p. p. of ¾f?ran to frighten; ¾Ï (cf. Goth. usÏ, Ger. erÏ, orig. meaning out) + f?ran to frighten. See Fear.] Afraid. [Obs. Sometimes heard from the uneducated.] Be not afeard; the isle is full of noises. Shak. Ø A¶fer (?), n. [L.] The southwest wind. Milton. Af·faÏbil¶iÏty (?), n. [L. affabilitas: cf. F. affabilit‚.] The quality of being affable; readiness to converse; courteousness in receiving others and in conversation; complaisant behavior. Affability is of a wonderful efficacy or power in procuring love. Elyot Af¶faÏble (?), a. [F. affable, L. affabilis, fr. affari to speak to; ad + fari to speak. See Fable.] 1. Easy to be spoken to or addressed; receiving others kindly and conversing with them in a free and friendly manner; courteous; sociable. An affable and courteous gentleman. Shak. His manners polite and affable. Macaulay. 2. Gracious; mild; benign. A serene and affable countenance. Tatler. Syn. Ð Courteous; civil; complaisant; accessible; mild; benign; condescending. Af¶faÏbleÏness, n. Affability. Af¶faÏbly, adv. In an affable manner; courteously.

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