Webster's Dictionary 1913

3835

Rhodonite

Rho″don‐ite (?), n. [Gr. ρὅδον the rose.] (Min.) Manganese spar, or silicate of manganese, a mineral occuring crystallised and in rose-red masses. It is often used as an ornamen...

3836

Rhodophane

Rho″do‐phane (?), n. [Gr. ρὅδον the rose + ��� to show.] (Physiol.) The red pigment contained in the inner segments of the cones of the retina in animals. See Chromophane. W. KÜ...

3837

Rhodopsin

Rho‐dop″sin (?), n. [Gr. ρὅδον rose + ὥψ eye.] (Physiol.) The visual purple. See under Visual.

3838

Rhodosperm

Rho″do‐sperm (?), n. [Gr. ρὅδον the rose + σπέρμα a seed.] (Bot.) Any seaweed with red spores.☞ As the name of a subclass, Rhodosperms, or Rhodospermeæ, is synonymous with Flori...

3839

Rhomb

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.) ...

3840

Rhomb spar

Rhomb″ spar′ (?). (Min.) A variety of dolomite.

3841

Rhombic

Rhom″bic (?), a. 1. Shaped like a rhomb.2. (Crystallog.) Same as Orthorhombic.

3842

Rhomboganoid

Rhom′bo‐ga″noid (?), n. [Rhomb + ganoid.] (Zoöl.) A ganoid fish having rhombic enameled scales; one of the Rhomboganoidei.

3843

Rhomboganoidei

‖Rhom′bo‐ga‐noi″de‐i (?), n. pl.(Zoöl.) Same as Ginglymodi.

3844

Rhombogene

Rhom″bo‐gene (?), n. [Rhomb + root of Gr. ��� to be born.] (Zoöl.) A dicyemid which produces infusorialike embryos; — opposed to nematogene. See Dicyemata. [Written also rhombog...

3845

Rhombohedral

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...

3846

Rhombohedric

Rhom′bo‐hed″ric (?), a.(Geom. & Crystallog.) Rhombohedral.

3847

Rhombohedron

Rhom′bo‐he″dron (?), n.(Geom. & Crystallog.) A solid contained by six rhomboids; a parallelopiped.

3848

Rhomboid

Rhom″boid (rŏm″boid), n. [Gr. ��� rhomboidal; ��� rhomb + εἰ̑δοσ shape: cf. F. rhomboïde.] (Geom.) An oblique-angled parallelogram like a rhomb, but having only the opposite sid...

3849

Rhomboid (2)

Rhom″boid (rŏm″boid), a. Same as Rhomboidal.

3850

Rhomboid-ovate

Rhom′boid–o″vate (?), a. Between rhomboid and ovate, or oval, in shape.

3851

Rhomboidal

Rhom‐boid″al (?), a. [Cf. F. rhomboïdal.] Having, or approaching, the shape of a rhomboid.

3852

Rhomboides

Rhom‐boid″es (?), n. A rhomboid. Milton.

3853

Rhombus

Rhom″bus (?), n. Same as Rhomb, 1.

3854

Rhonchal

Rhon′chal (?), a.(Med.) Rhonchial.

3855

Rhonchial

Rhon″chi‐al (?), a.(Med.) Of or pertaining to a rhonchus; produced by rhonchi.Rhonchial fremitus. [L. fremitus a dull roaring or murmuring.] (Med.) A vibration of the chest wall...

3856

Rhonchisonant

Rhon‐chis″o‐nant (?), a. [L. rhonchus a snoring + sonans, p. pr. of sonare to sound.] Making a snorting noise; snorting.

3857

Rhonchus

‖Rhon″chus (?), n.; pl.Rhonchi (#). (Med.) An adventitious whistling or snoring sound heard on auscultation of the chest when the air channels are partially obstructed. By some ...

3858

Rhopalic

Rho‐pal″ic (?), a. [Gr. ���� club-shaped; fr. ��� a club: cf. F. rhopalique.] (Pros.) Applied to a line or verse in which each successive word has one more syllable than the pre...

3859

Rhopalium

‖Rho‐pa″li‐um (?), n.; pl.Rhopalia (#). (Zoöl.) One of the marginal sensory bodies of medusæ belonging to the Discophora.

3860

Rhopalocera

‖Rhop′a‐loc″e‐ra (?), n. pl.(Zoöl.) A division of Lepidoptera including all the butterflies. They differ from other Lepidoptera in having club-shaped antennæ.

3861

Rhotacism

Rho″ta‐cism (?), n. [Gr. ρωτακἵζειν to use the letter r (ρ) overmuch: cf. F. rhotacisme.] An oversounding, or a misuse, of the letter r; specifically (Phylol.), the tendency, ex...