{ Rhi"no*lite (?), Rhi"no*lith (?), } n. [Rhino- + -lite, -lith.]
(Med.) A concretion formed within the cavities of the nose.
Rhi`no*log"ic*al (?), a. Of or pertaining to rhinology.
Rhi*nol"o*gist (?), n. One skilled in rhinology.
Rhi*nol"o*gy (?), n. [Rhino- + -logy.] The science which treats of the
nose, and its diseases.
Rhi*nol"o*phid (?), n. [Rhino- + Gr. &?;&?;&?; crest.] (Zoöl.) Any
species of the genus Rhinilophus, or family Rhinolophidæ, having a
horseshoe-shaped nasal crest; a horseshoe bat.
Rhi*nol"o*phine (?), a. (Zoöl.) Like or pertaining to the rhinolophids,
or horseshoe bats.
Rhi"no*phore (?), n. [Rhino- + Gr. &?;&?;&?; to bear.] (Zoöl.) 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.
Rhi`no*plas"tic (?), a. [Rhino- + -plastic: cf. F. rhinoplastique.]
(Surg.) Of or pertaining to rhinoplasty; as, a rhinoplastic operation.
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.
Rhi"no*pome (?), n. [Rhino- + Gr. pw^ma a lid. ] (Zoöl.) Any old-world
bat of the genus Rhinopoma. The rhinopomes have a long tail extending
beyond the web, and inhabit caves and tombs.
||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.
Rhi"no*scope (?), n. [Rhino- + -scope.] A small mirror for use in
rhinoscopy.
Rhi`no*scop"ic (?), a. (Physiol.) Of or pertaining to rhinoscopy.
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.
||Rhi`no*the"ca (?), n.; pl. Rhinothecæ (#). [NL., from gr. &?;&?;&?;,
||&?;&?;&?;, the nose + &?;&?;&?; case.] (Zoöl.) The sheath of the
||upper mandible of a bird.
||Rhi*pi`do*glos"sa (?), n. pl. [NL., fr. Gr. &?;&?;&?; a fan +
||&?;&?;&?;&?; a tongue.] (Zoöl.) 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.
Rhi*pip"ter (?), n. [Gr. &?;&?;&?; a fan + &?;&?;&?; wing.] (Zoöl.) One
of the Rhipiptera, a group of insects having wings which fold like a
fan; a strepsipter.
Rhi*pip"ter*an (?), n. (Zoöl.) Same as Rhipipter.
Rhi*zan"thous (?), a. [Gr. &?;&?;&?; root + &?;&?;&?; flower.] (Bot.)
Producing flowers from a rootstock, or apparently from a root.
Rhi"zine (?), n. [Gr. &?;&?;&?; root.] (Bot.) A rootlike filament or
hair growing from the stems of mosses or on lichens; a rhizoid.
Rhi`zo*car"pous (?), a. [Gr. &?;&?;&?; root + &?;&?;&?; fruit.] (Bot.)
Having perennial rootstocks or bulbs, but annual flowering stems; --
said of all perennial herbs.
||Rhi`zo*ceph"a*la (?), n. pl. [NL., fr. Gr. &?;&?;&?; root + &?;&?;&?;
||head.] (Zoöl.) A division of Pectostraca including saclike parasites
||of Crustacea. They adhere by rootlike extensions of the head. See
||Illusration in Appendix.
Rhiz"o*dont (?), n. [Gr. &?;&?;&?; root + &?;&?;&?;, &?;&?;&?;, a
tooth.] (Zoöl.) A reptile whose teeth are rooted in sockets, as the
crocodile.
Rhiz"o*gan (?), a. [Gr. &?;&?;&?; root + -gen: cf. F. rhizogène.]
(Bot.) Prodicing roots.
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.
Rhi"zoid (?), n. [Gr. &?;&?;&?; root + -oid.] (Bot.) A rootlike
appendage.
||Rhi*zo"ma (?), n.; pl. Rhizomata (#). [NL.] (Bot.) SAme as Rhizome.
Rhi*zo"ma*tous (?), a. (Bot.) Having the nature or habit of a rhizome
or rootstock.
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.
||Rhi*zoph"a*ga (?), n. pl. [NL.] (Zoöl.) A division of marsupials. The
||wombat is the type.
Rhi*zoph"a*gous (?), a. [Gr. &?;&?;&?;; &?;&?;&?; a root + &?;&?;&?; to
eat.] Feeding on roots; root- eating.
||Rhi*zoph"o*ra (?), n. [NL. See Rhizophorous.] (Bot.) A genus of trees
||including the mangrove. See Mangrove.
Rhi*zoph"o*rous (?), a. [Gr. &?;&?;&?; a root + &?;&?;&?;&?; to bear.]
(Bot.) Bearing roots.
Rhiz"o*pod (?), n. (Zoöl.) One of the Rhizopoda.
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.
||Rhi*zop"o*da (?), n. pl. [NL., fr. Gr. &?;&?;&?; a root + -poda.]
||(Zoöl.) 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 Amœbea), Helizoa, Radiolaria, and
||Foraminifera (or Reticularia). See Protozoa.
Rhi*zop"o*dous (?), a. (Zoöl.) Of or pertaining to the rhizopods.
||Rhi`zo*stom"a*ta (?), n. pl. [NL., fr. Gr. &?;&?;&?; a root +
||&?;&?;&?;, &?;&?;&?;&?;, a mouth.] (Zoöl.) A suborder of Medusæ which
||includes very large species without marginal tentacles, but having
||large mouth lobes closely united at the edges. See Illust. in
||Appendix.
Rhiz"o*stome (?), n. (Zoöl.) One of the Rhizostomata.
<! p. 1238 !>
||Rhi`zo*tax"is (?), n. [NL., fr. Gr. &?;&?;&?; a root + &?;&?;&?;
||arrangement.] (Bot.) The arrangement of the roots of plants.
Rhob (rb), n. See 1st Rob.
Rho`dam*mo"ni*um (?), a. (Chem.) Pertaining to, derived from, or
containing, rhodium and ammonia; -- said of certain complex compounds.
Rho"da*nate (?), n. (Chem.) A salt of rhodanic acid; a sulphocyanate.
[Obsoles.]
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.]
Rho`de*o*re"tin (?), n. [Gr. &?;&?;&?; the rose + &?;&?;&?; resin.]
(Chem.) Same as Convolvuln.
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.
Rho"dic (?), a. (Chem.) Of or pertaining to rhodium; containing
rhodium.
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.
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.
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.
Rho*doc"ri*nite (?), n. [Gr. "ro`don rose + &?;&?;&?; lily.] (Paleon.)
A rose encrinite.
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.
Rhod`o*mon*tade" (?), n. See Rodomontade.
Rhod`o*mon*tad"er (?), n. See Rodomontador.
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.
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. KÜhne.
Rho*dop"sin (?), n. [Gr. "ro`don rose + "w`ps eye.] (Physiol.) The
visual purple. See under Visual.
Rho"do*sperm (?), n. [Gr. "ro`don the rose + spe`rma a seed.] (Bot.)
Any seaweed with red spores.
As the name of a subclass, Rhodosperms, or Rhodospermeæ, is synonymous
with Florideæ (which see.)
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.