Chapter 1344

Rheu`ma*tis"moid (?) , a. [ Rheumatism + -oid .] (Med.) Of or resembling rheum or rheumatism.

Rheumic <Xpage=1237>

Rheum"ic (?) , a. (Med.) Pertaining to, or characterized by, rheum.

Rheumic diathesis . See Dartrous diathesis , under Dartrous .

Rheumides <Xpage=1237>

Rheu"mi*des (?) , n.pl. [NL. See Rheum .] (Med.) The class of skin disease developed by the dartrous diathesis. See under Dartrous .

Rheumy <Xpage=1237>

Rheum"y (?) , a. Of or pertaining to rheum; abounding in, or causing, rheum; affected with rheum.

His head and rheumy eyes distill in showers. Dryden.

And tempt the rheumy and unpurged air To add unto his sickness. Shak.

Rhigolene <Xpage=1237>

Rhig"o*lene (?) , n. [Gr. <?/<?/<?/ cold + L. oleum oil.] (Chem.) A mixture of volatile hydrocarbons intermediate between gsolene and cymogene. It is obtained in the purification of crude petroleum, and is used as a refregerant.

Rhime <Xpage=1237>

Rhime (?) , n. See Rhyme . [Obs.]

Rhinal <Xpage=1237>

Rhi"nal (?) , a. [Gr<?/<?/<?/, <?/<?/<?/, the nose.] (Anat.) Og or pertaining to the nose or olfactory organs.

Rhinaster <Xpage=1237>

Rhi*nas"ter (?) , n. [NL., fr. Gr. <?/<?/<?/, <?/<?/<?/, nose + <?/<?/<?/ star.] (Zo\'94l.) The borele.

Rhine <Xpage=1237>

Rhine (?) , n. [AS. ryne . See Run .] A water course; a ditch. [Written also rean .] [Prov. Eng.]

Macaulay.

Rhinencephalic <Xpage=1237>

Rhi`nen*ce*phal"ic (?) , a. (Anat.) Of or pertaining to the rhinencephalon.

Rhinencephalon <Xpage=1237>

Rhi`nen*ceph"a*lon (?) , n. ; pl. Rhinencephala (#) . [NL., fr. Gr. <?/<?/<?/, <?/<?/<?/, the nose + <?/<?/ the brain.] (Anat.) The division of the brain in front of the prosencephalon, consisting of the two olfactory lobes from which the olfactory nerves arise.

&hand; The term is sometimes used for one of the olfactory lobes, the plural being used for the two taken together.

Rhinestone <Xpage=1237>

Rhine"stone` (?) , n. [Cf. G. rheinkiesel Rhine quartz.] A colorless stone of high luster, made of paste. It is much used as an inexpensive ornament.

Rhinitis <Xpage=1237>

Rhi*ni"tis (?) , n. [NL., fr. Gr. <?/<?/. <?/<?/<?/, the nose + -itis .] (Med.) Infllammation of the nose; esp., inflammation of the mucous membrane of the nostrils.

Rhino <Xpage=1237>

Rhi*no (?) , n. [Etymol. uncertain.] Gold and silver, or money. [Cant]

W. Wagstaffe.

As long as the rhino lasted. Marryat.

Rhino- <Xpage=1237>

Rhi"no- . A combining form from Greek <?/<?/, <?/<?/<?/, the nose , as in rhino lith, rhino logy.

Rhinocerial, Rhinocerical <Xpage=1237>

Rhi`no*ce"ri*al (?) , Rhi`no*cer"ic*al (?) , a. (Zo\'94l.) Of or pertaining to the rhinoceros; resembling the rhinoceros, or his horn.

Tatler.

Rhinoceros <Xpage=1237>

Rhi*noc"e*ros (?) , n. [L., fr. Gr. <?/<?/<?/, <?/<?/<?/; <?/<?/<?/. <?/<?/<?/, the nose + <?/<?/<?/ a horn: cf. F. rhinoc\'82ros . See Horn .] (Zo\'94l.) Any pachyderm belonging to the genera Rhinoceros , Atelodus , and several allied genera of the family Rhinocerotid\'91 , of which several living, and many extinct, species are known. They are large and powerful, and usually have either one or two stout conical median horns on the snout.

&hand; The Indian, or white, and the Javan rhinoceroses ( Rhinoceros Indicus and R. Sondaicus ) have incisor and canine teeth, but only one horn, and the very thick skin forms shieldlike folds. The two or three African species belong to Atelodus , and have two horns, but lack the dermal folds, and the incisor and canine teeth. The two Malay, or East Indian, two-horned species belong to Ceratohinus , in which incisor and canine teeth are present. See Borele , and Keitloa .

Rhinoceros auk (Zo\'94l.) , an auk of the North Pacific ( Cerorhina monocrata ) which has a deciduous horn on top of the bill. -- Rhinoceros beetle (Zo\'94l.) , a very large beetle of the genus Dynastes , having a horn on the head. -- Rhinoceros bird . (Zo\'94l.) (a) A large hornbill ( Buceros rhinoceros ), native of the East Indies. It has a large hollow hornlike process on the bill. Called also rhinoceros hornbill . See Hornbill . (b) An African beefeater ( Buphaga Africana ). It alights on the back of the rhinoceros in search of parasitic insects.

Rhinocerote <Xpage=1237>

Rhi*noc"e*rote (?) , n. A rhinoceros. [Obs.]

B. Jonson.

Rhinocerotic <Xpage=1237>

Rhi*noc`e*rot"ic (?) , a. Of or pertaining to the rhinoceros. [R.]

Rhinolite Rhinolith <Xpage=1237>

Rhi"no*lite (?) Rhi"no*lith (?) , n. [ Rhino- + -lite , -lith .] (Med.) A concretion formed within the cavities of the nose.

Rhinological <Xpage=1237>

Rhi`no*log"ic*al (?) , a. Of or pertaining to rhinology.

Rhinologist <Xpage=1237>

Rhi*nol"o*gist (?) , n. One skilled in rhinology.

Rhinology <Xpage=1237>

Rhi*nol"o*gy (?) , n. [ Rhino- + -logy .] The science which treats of the nose, and its diseases.

Rhinolophid <Xpage=1237>

Rhi*nol"o*phid (?) , n. [ Rhino- + Gr. <?/<?/<?/ crest.] (Zo\'94l.) Any species of the genus Rhinilophus , or family Rhinolophid\'91 , having a horseshoe-shaped nasal crest; a horseshoe bat.

Rhinolophine <Xpage=1237>

Rhi*nol"o*phine (?) , a. (Zo\'94l.) Like or pertaining to the rhinolophids, or horseshoe bats.

Rhinophore <Xpage=1237>

Rhi"no*phore (?) , n. [ Rhino- + Gr. <?/<?/<?/ to bear.] (Zo\'94l.) One of the two tentacle-like organs on the back of the head or neck of a nudibranch or tectibranch mollusk. They are usually retractile, and often transversely furrowed or plicate, and are regarded as olfactory organs. Called also dorsal tentacles . See Illust . under Pygobranchia , and Opisthobranchia .

Rhinoplastic <Xpage=1237>

Rhi`no*plas"tic (?) , a. [ Rhino- + -plastic : cf. F. rhinoplastique .] (Surg.) Of or pertaining to rhinoplasty; as, a rhinoplastic operation .

Rhinoplasty <Xpage=1237>

Rhi"no*plas`ty (?) , n. [ Rhino- + -plasty : cf. F. rhinoplastie .] Plastic surgery of the nose to correct deformity or to replace lost tissue. Tissue may be transplanted from the patient's cheek, forehead, arm, etc., or even from another person.

Rhinopome <Xpage=1237>

Rhi"no*pome (?) , n. [ Rhino- + Gr. pw^ma a lid. ] (Zo\'94l.) Any old-world bat of the genus Rhinopoma . The rhinopomes have a long tail extending beyond the web, and inhabit caves and tombs.

Rhinoscleroma <Xpage=1237>

Rhi`no*scle*ro"ma (?) , n. [ Rhino- + scleroma .] (Med.) A rare disease of the skin, characterized by the development of very hard, more or less flattened, prominences, appearing first upon the nose and subsequently upon the neighboring parts, esp. the lips, palate, and throat.

J. V. Shoemaker.

Rhinoscope <Xpage=1237>

Rhi"no*scope (?) , n. [ Rhino- + -scope .] A small mirror for use in rhinoscopy.

Rhinoscopic <Xpage=1237>

Rhi`no*scop"ic (?) , a. (Physiol.) Of or pertaining to rhinoscopy.

Rhinoscopy <Xpage=1237>

Rhi*nos"co*py (?) , n. [ Rhino- + -scopy .] (Physiol.) The examination or study of the soft palate, posterior nares, etc., by means of a laryngoscopic mirror introduced into the pharynx.

Rhinotheca <Xpage=1237>

Rhi`no*the"ca (?) , n. ; pl. Rhinothec\'91 (#) . [NL., from gr. <?/<?/<?/, <?/<?/<?/, the nose + <?/<?/<?/ case.] (Zo\'94l.) The sheath of the upper mandible of a bird.

Rhipidoglossa <Xpage=1237>

Rhi*pi`do*glos"sa (?) , n.pl. [NL., fr. Gr. <?/<?/<?/ a fan + <?/<?/<?/<?/ a tongue.] (Zo\'94l.) A division of gastropod mollusks having a large number of long, divergent, hooklike, lingual teeth in each transverse row. It includes the scutibranchs. See Illustration in Appendix.

Rhipipter <Xpage=1237>

Rhi*pip"ter (?) , n. [Gr. <?/<?/<?/ a fan + <?/<?/<?/ wing.] (Zo\'94l.) One of the Rhipiptera , a group of insects having wings which fold like a fan; a strepsipter.

Rhipipteran <Xpage=1237>

Rhi*pip"ter*an (?) , n. (Zo\'94l.) Same as Rhipipter .

Rhizanthous <Xpage=1237>

Rhi*zan"thous (?) , a. [Gr. <?/<?/<?/ root + <?/<?/<?/ flower.] (Bot.) Producing flowers from a rootstock, or apparently from a root.

Rhizine <Xpage=1237>

Rhi"zine (?) , n. [Gr. <?/<?/<?/ root.] (Bot.) A rootlike filament or hair growing from the stems of mosses or on lichens; a rhizoid.

Rhizocarpous <Xpage=1237>

Rhi`zo*car"pous (?) , a. [Gr. <?/<?/<?/ root + <?/<?/<?/ fruit.] (Bot.) Having perennial rootstocks or bulbs, but annual flowering stems; -- said of all perennial herbs.

Rhizocephala <Xpage=1237>

Rhi`zo*ceph"a*la (?) , n. pl. [NL., fr. Gr. <?/<?/<?/ root + <?/<?/<?/ head.] (Zo\'94l.) A division of Pectostraca including saclike parasites of Crustacea. They adhere by rootlike extensions of the head. See Illusration in Appendix.

Rhizodont <Xpage=1237>

Rhiz"o*dont (?) , n. [Gr. <?/<?/<?/ root + <?/<?/<?/, <?/<?/<?/, a tooth.] (Zo\'94l.) A reptile whose teeth are rooted in sockets, as the crocodile.

Rhizogan <Xpage=1237>

Rhiz"o*gan (?) , a. [Gr. <?/<?/<?/ root + -gen : cf. F. rhizog\'8ane .] (Bot.) Prodicing roots.

Rhizogen <Xpage=1237>

Rhiz"o*gen , n. (Bot.) One of a proposed class of flowering plants growning on the roots of other plants and destitute of green foliage.

Rhizoid <Xpage=1237>

Rhi"zoid (?) , n. [Gr. <?/<?/<?/ root + -oid .] (Bot.) A rootlike appendage.

Rhizoma <Xpage=1237>

Rhi*zo"ma (?) , n. ; pl. Rhizomata (#) . [NL.] (Bot.) SAme as Rhizome .

Rhizomatous <Xpage=1237>

Rhi*zo"ma*tous (?) , a. (Bot.) Having the nature or habit of a rhizome or rootstock.

Rhizome <Xpage=1237>

Rhi*zome" (?) , n. [Gr. <?/<?/<?/ the mass of roots (of a tree), a stem, race, fr. <?/<?/<?/ to make to root, pass., to take root, fr. <?/<?/<?/ a root: cf. F. rhizome .] (Bot.) A rootstock. See Rootstock .

Rhizophaga <Xpage=1237>

Rhi*zoph"a*ga (?) , n.pl. [NL.] (Zo\'94l.) A division of marsupials. The wombat is the type.

Rhizophagous <Xpage=1237>

Rhi*zoph"a*gous (?) , a. [Gr. <?/<?/<?/; <?/<?/<?/ a root + <?/<?/<?/ to eat.] Feeding on roots; root-eating.

Rhizophora <Xpage=1237>

Rhi*zoph"o*ra (?) , n. [NL. See Rhizophorous .] (Bot.) A genus of trees including the mangrove. See Mangrove .

Rhizophorous <Xpage=1237>

Rhi*zoph"o*rous (?) , a. [Gr. <?/<?/<?/ a root + <?/<?/<?/<?/ to bear.] (Bot.) Bearing roots.

Rhizopod <Xpage=1237>

Rhiz"o*pod (?) , n. (Zo\'94l.) One of the Rhizopoda.

&hand; The rhizopods belonging to the Radiolaria and Foraminifera have been of great geological importance, especially in the Cretaceous and Tertiary periods. Chalk is mostly made from the shells of Foraminifera. The nummulites are the principal ingredient of a limestone which is of great extent in Europe and Asia, and is the material of which some of the pyramids of Egypt are made. The shells are abundant in deepsea mud, and are mostly minute, seldom larger than a small grain of sand, except in the case of the nummulities, which are sometimes an inch in diameter.

Rhizopoda <Xpage=1237>

Rhi*zop"o*da (?) , n. pl. [NL., fr. Gr. <?/<?/<?/ a root + -poda .] (Zo\'94l.) An extensive class of Protozoa, including those which have pseudopodia, by means of which they move about and take their food. The principal groups are Lobosa (or Am&oe;bea), Helizoa, Radiolaria, and Foraminifera (or Reticularia). See Protozoa .

Rhizopodous <Xpage=1237>

Rhi*zop"o*dous (?) , a. (Zo\'94l.) Of or pertaining to the rhizopods.

Rhizostomata <Xpage=1237>

Rhi`zo*stom"a*ta (?) , n.pl. [NL., fr. Gr. <?/<?/<?/ a root + <?/<?/<?/, <?/<?/<?/<?/, a mouth.] (Zo\'94l.) A suborder of Medus\'91 which includes very large species without marginal tentacles, but having large mouth lobes closely united at the edges. See Illust . in Appendix.

Rhizostome <Xpage=1237>

Rhiz"o*stome (?) , n. (Zo\'94l.) One of the Rhizostomata.

<page="1238"> Page 1238

Rhizotaxis <Xpage=1238>

Rhi`zo*tax"is (?) , n. [NL., fr. Gr. <?/<?/<?/ a root + <?/<?/<?/ arrangement.] (Bot.) The arrangement of the roots of plants.

Rhob <Xpage=1238>

Rhob (?) , n. See 1st Rob.

Rhodammonium <Xpage=1238>

Rho`dam*mo"ni*um (?) , a. (Chem.) Pertaining to, derived from, or containing, rhodium and ammonia; -- said of certain complex compounds.

Rhodanate <Xpage=1238>

Rho"da*nate (?) , n. (Chem.) A salt of rhodanic acid; a sulphocyanate. [Obsoles.]

Rhodanic <Xpage=1238>

Rho*dan"ic (?) , a. [Gr. <?/<?/<?/ the rose.] (Chem.) Pertaining to, or designating, an acid (commonly called sulphocyanic acid ) which frms a red color with ferric salts. [Obsoles.]

Rhodeoretin <Xpage=1238>

Rho`de*o*re"tin (?) , n. [Gr. <?/<?/<?/ the rose + <?/<?/<?/ resin.] (Chem.) Same as Convolvuln .

Rhodian <Xpage=1238>

Rho"di*an (?) , a. [L. Rhodius : cf. F. rhodien .] Of or pertaining to Rhodes, an island of the Mediterranean. -- n. A native or inhabitant of Rhodes.

Rhodic <Xpage=1238>

Rho"dic (?) , a. (Chem.) Of or pertaining to rhodium; containing rhodium.

Rhodium <Xpage=1238>

Rho"di*um (?) , n. [NL., fr. Gr. "ro`don the rose. So called from the rose-red color of certain of its solutions. See Rhododendron .] (Chem.) A rare element of the light platinum group. It is found in platinum ores, and obtained free as a white inert metal which it is very difficult to fuse. Symbol Rh. Atomic weight 104.1. Specific gravity 12.

Rhodizonic <Xpage=1238>

Rho`di*zon"ic (?) , a. [Gr. <?/<?/<?/ to be rose-red.] (Chem.) Pertaining to, or designating, a colorless crystalline substance (called rhodizonic acid , and carboxylic acid ) obtained from potassium carboxide and from certain quinones. It forms brilliant red, yellow, and purple salts.

Rhodochrosite <Xpage=1238>

Rho`do*chro"site (?) , n. [Gr. "ro`don the rose + <?/<?/<?/ a coloring.] (Min.) Manganese carbonate, a rose-red mineral sometimes occuring crystallized, but generally massive with rhombohedral cleavage like calcite; -- called also dialogite .

Rhodocrinite <Xpage=1238>

Rho*doc"ri*nite (?) , n. [Gr. "ro`don rose + <?/<?/<?/ lily.] (Paleon.) A rose encrinite.

Rhododendron <Xpage=1238>

Rho`do*den"dron (?) , n. [L., fr. Gr. "rodo`dendron , literally, rose tree; "ro`don rose + de`ndron tree. See Rose .] (Bot.) A genus of shrubs or small trees, often having handsome evergreen leaves, and remarkable for the beauty of their flowers; rosebay.

Rhodomontade <Xpage=1238>

Rhod`o*mon*tade" (?) , n. See Rodomontade .

Rhodomontader <Xpage=1238>

Rhod`o*mon*tad"er (?) , n. See Rodomontador .

Rhodonite <Xpage=1238>

Rho"don*ite (?) , n. [Gr. "ro`don the rose. ] (Min.) Manganese spar, or silicate of manganese, a mineral occuring crystallised and in rose-red masses. It is often used as an ornamental stone.

Rhodophane <Xpage=1238>

Rho"do*phane (?) , n. [Gr. "ro`don the rose + <?/<?/<?/ to show.] (Physiol.) The red pigment contained in the inner segments of the cones of the retina in animals. See Chromophane .

W. K\'9ahne.

Rhodopsin <Xpage=1238>

Rho*dop"sin (?) , n. [Gr. "ro`don rose + "w`ps eye.] (Physiol.) The visual purple. See under Visual .

Rhodosperm <Xpage=1238>

Rho"do*sperm (?) , n. [Gr. "ro`don the rose + spe`rma a seed.] (Bot.) Any seaweed with red spores.

&hand; As the name of a subclass, Rhodosperms , or Rhodosperme\'91 , is synonymous with Floride\'91 (which see.)

Rhomb <Xpage=1238>

Rhomb (?) , n. [L. rhombus , Gr. <?/<?/<?/ rhomb, a spinning top, magic wheel, fr. <?/<?/<?/ to turn or whirl round, perhaps akin to E. wrench : cf. F. rhombe . Cf. Rhombus , Rhumb .] 1. (Geom.) An equilateral parallelogram, or quadrilateral figure whose sides are equal and the opposite sides parallel. The angles may be unequal, two being obtuse and two acute, as in the cut, or the angles may be equal, in which case it is usually called a square . <-- Illustr. of Rhomb. -->

2. (Geom.) A rhombohedron.

Fresnel's rhomb (Opt.) , a rhomb or oblique parallelopiped of crown or St. Gobain glass so cut that a ray of light entering one of its faces at right angles shall emerge at right angles at the opposite face, after undergoing within the rhomb, at other faces, two reflections. It is used to produce a ray circularly polarized from a plane-polarized ray, or the reverse.

Nichol.

Rhombic <Xpage=1238>

Rhom"bic (?) , a. 1. Shaped like a rhomb.

2. (Crystallog.) Same as Orthorhombic .

Rhomboganoid <Xpage=1238>

Rhom`bo*ga"noid (?) , n. [ Rhomb + ganoid .] (Zo\'94l.) A ganoid fish having rhombic enameled scales; one of the Rhomboganoidei.

Rhomboganoidei <Xpage=1238>

Rhom`bo*ga*noi"de*i (?) , n.pl. [NL.] (Zo\'94l.) Same as Ginglymodi .

Rhombogene <Xpage=1238>

Rhom"bo*gene (?) , n. [ Rhomb + root of Gr. <?/<?/<?/ to be born.] (Zo\'94l.) A dicyemid which produces infusorialike embryos; -- opposed to nematogene . See Dicyemata . [Written also rhombogen .]

Rhombohedral <Xpage=1238>

Rhom`bo*he"dral (?) , a. (Geom. & Crystallog.) Related to the rhombohedron; presenting the form of a rhombohedron, or a form derivable from a rhombohedron; relating to a system of forms including the rhombohedron and scalenohedron.

Rhombohedral iron ore (Min.) See Hematite . -- Rhombohedral system (Crystallog.) , a division of the hexagonal system embracing the rhombohedron, scalenohedron, etc.

Rhombohedric <Xpage=1238>