RHABDUS, rab'dus, _n._ a simple, straight spicule.--_adj._ RHAB'DOUS. [Gr.
_rhabdos_, a rod.]
RHACHIOMYELITIS, r[=a]-ki-[=o]-m[=i]-e-l[=i]'tis, _n._ inflammation of the spinal cord--_myelitis._--_ns._ RHACHIOT'OMY, incision into the spinal canal; RHACHIS'CHISIS, defective formation of the spinal canal--_spina bifida._ [Gr. _rhachis_, the spine, _myelos_, marrow.]
RHACHITIS=_Rachitis_ (q.v.).
RHACOCHILUS, rak-[=o]-k[=i]'lus, _n._ a genus of embiotocoid fishes. [Gr.
_rhakos_, a rag, _cheilos_, the lip.]
RHACOPHORUS, r[=a]-kof'[=o]-rus, _n._ a genus of batrachians, with long and webbed feet, adapting it for long leaps. [Gr. _rhakos_, a rag, _pherein_, to bear.]
RHADAMANTHINE, ra-da-man'thin, _n._ of _Rhadamanthus_, judge of the lower world, with Minos and aeacus--applied generally to a solemn and final judgment.--Also RHADAMAN'TINE.
RHaeTIAN, r[=e]'shi-an, _adj._ pertaining to the ancient Rhaetians or their country _Rhaetia_, a Roman province between the Po and the Danube--also RHae'TIC.--_adj._ and _n._ RHae'TO-ROMAN'IC, pertaining to a group of Romance dialects spoken in south-eastern Switzerland.--RHaeTIC BEDS, a series of strata forming the uppermost portion of the Trias, extensively developed in the _Rhaetian_ Alps.
RHAGADES, rag'a-d[=e]z, _n.pl._ fissures of the skin. [Gr. _rhagas_ (pl.
_rhagades_), a crack.]
RHAGODIA, ra-g[=o]'di-a, _n._ a genus of apetalous plants. [Gr.
_rhag[=o]d[=e]s_, like grapes--_rhax_, _rhagos_, a grape.]
RHAGON, rag'on, _n._ a form of sponge with clustered spherical flagellated endodermal chambers.--_adjs._ RHAG'ON[=A]TE, RHAG'OSE. [Gr. _rhax_, _rhagos_, a grape.]
RHAMNACEae, ram-n[=a]'s[=e]-[=e], _n._ an order of polypetalous plants.--_adj._ RHAMN[=A]'CEOUS.
RHAMNUS, ram'nus, _n._ a genus of polypetalous shrubs and trees, including the buckthorn. [Gr.]
RHAMPHASTIDae, ram-fas'ti-d[=e], _n._ a family of picarian birds, toucans.
[Gr. _rhamphos_, a beak.]
RHAMPHOCELUS, ram-f[=o]-c[=e]'lus, _n._ a remarkable genus of tanagers, native to South America.
RHAMPHODON, ram'f[=o]-don, _n._ the saw-billed humming-bird. [Gr.
_rhamphos_, a curved beak, _odous_, a tooth.]
RHAMPHOID, ram'foid, _adj._ beak-shaped.
RHAMPHOLEON, ram-f[=o]'l[=e]-on, _n._ a genus of chameleons. [Gr.
_rhamphos_, a curved beak, _le[=o]n_, lion.]
RHAMPHOMICRON, ram-f[=o]-mik'ron, _n._ a genus of humming-birds. [Gr.
_rhamphos_, a beak, _mikros_, little.]
RHAMPHORHYNCHUS, ram-f[=o]-ring'kus, _n._ a genus of pterodactyls. [Gr.
_rhamphos_, a curved beak, _rhyngchos_, a beak.]
RHAMPHOTHECA, ram-f[=o]-th[=e]'ka, _n._ (_ornith._) the integument of the whole beak. [Gr. _rhamphos_, a curved beak, _th[=e]k[=e]_, a sheath.]
RHAPIDOPHYLLUM, ra-pi-d[=o]-fil'um, _n._ a genus of palms--the blue palmetto of Florida.--_n._ RH[=A]'PIS, a genus of Chinese palms. [Gr.
_rhapis_, rod, _phyllon_, leaf.]
RHAPONTIC, r[=a]-pon'tik, _n._ rhubarb. [L., 'Pontic rha.']
RHAPSODIC, -AL, rap-sod'ik, -al, _adj._ pertaining to, consisting of, or resembling rhapsody: gushing.--_adv._ RHAPSOD'ICALLY.--_v.t._ and _v.i._ RHAP'SODISE, to write or utter rhapsodies: to express with poetic feeling:--_pr.p._ rhap'sod[=i]sing; _pa.p._ rhap'sod[=i]sed.--_n._ RHAP'SODIST, one who recites or sings rhapsodies, esp. one of a class of men in ancient Greece who travelled from place to place reciting Homer and other epic poetry--also RHAP'SODE: one who composes verses extempore: one who speaks or writes disjointedly.--_adj._ RHAPSODIS'TIC.--_ns._ RHAP'SODOMANCY, divination by means of verses; RHAP'SODY, any wild unconnected composition: a part of an epic poem for recitation at one time: a jumble: (_mus._) composition irregular in form. [Fr.,--L.,--Gr.
_rhaps[=o]dia_, _rhaptein_, to sew, _[=o]d[=e]_, a song.]
RHEA, r[=e]'a, _n._ the ramie plant or fibre.
RHEA, r[=e]'a, _n._ the daughter of Uranus and Ge, wife and sister of Kronos: the only three-toed ostrich: the fifth satellite of Jupiter.
RHEIC, r[=e]'ik, _adj._ pertaining to rhubarb.--_n._ RH[=E]'INE, rheic acid.
RHEIN-BERRY, r[=i]n'ber-i, _n._ the common buckthorn.--Also RHINE'-BERR'Y.
RHEMATIC, r[=e]-mat'ik, _adj._ derived from a verb.--_n._ the doctrine of propositions.
RHEMISH, r[=e]'mish, _adj._ pertaining to _Rheims_ in north-eastern France.--RHEMISH VERSION, the English translation of the New Testament used by Roman Catholics, prepared at Rheims in 1582, forming part of the Douay Bible--Old Testament part prepared at _Douay_ in 1609-10.
RHENISH, ren'ish, _adj._ pertaining to the river _Rhine_.--_n._ Rhine wine, hock, light and still. [L. _Rhenus_.]
RHEOCORD, r[=e]'[=o]-kord, _n._ a metallic wire used in measuring the resistance of an electric current. [Gr. _rhein_, to flow, _chord[=e]_, a cord.]
RHEOMETER, REOMETER, r[=e]-om'e-t[.e]r, _n._ an instrument for measuring the strength of currents, as of electricity: a galvanometer.--_adj._ RHEOMET'RIC.--_n._ RHEOM'ETRY, fluxions. [Gr. _rhein_, to flow, _metron_, measure.]
RHEOSCOPE, r[=e]'[=o]-sk[=o]p, _n._ an electroscope.--_adj._ RHEOSCOP'IC.
[Gr. _rhein_, to flow, _skopein_, to view.]
RHEOSTAT, r[=e]'o-stat, _n._ the name given by Wheatstone to an instrument for varying an electric resistance between given limits.--_adj._ RHEOSTAT'IC.--_n._ RHEOSTAT'ICS, the statics of fluids. [Gr. _rhein_, to flow, _statos_, verbal adj. of _histanai_, to stand.]
RHEOTOME, r[=e]'[=o]-t[=o]m, _n._ a means by which an electric current can be periodically interrupted. [Gr. _rhein_, to flow, _temnein_, to cut.]
RHEOTROPE, r[=e]'[=o]-tr[=o]p, _n._ an instrument for periodically changing the direction of an electric current.--_n._ RHEOT'R[=O]PISM, the effect of a current of water upon the direction of plant growth. [Gr. _rhein_, to flow, _trepein_, to turn.]
RHESUS, r[=e]'sus, _n._ the boonder, one of the most widely distributed Indian monkeys, much venerated by the natives: (_entom._) a genus of coleopterous insects.--_adj._ RH[=E]'SIAN. [Gr.]
RHETORIC, ret'or-ik, _n._ the theory and practice of eloquence, whether spoken or written, the whole art of using language so as to persuade others: the art of speaking with propriety, elegance, and force: artificial oratory: declamation.--_adj._ RHETOR'ICAL, pertaining to rhetoric: oratorical.--_adv._ RHETOR'ICALLY.--_v.i._ RHETOR'IC[=A]TE (_obs._), to act the orator.--_ns._ RHETORIC[=A]'TION (_obs._); RHETORI'CIAN, one who teaches the art of rhetoric: an orator.--_v.i._ RHET'ORISE, to play the orator. [Fr.,--L. _rhetorica_ (_ars_)--Gr. _rh[=e]torik[=e]_ (_techn[=e]_), the rhetorical (art)--_rh[=e]t[=o]r_, a public speaker--_erein_, to speak.]
RHEUM, r[=oo]m, _n._ the mucous discharge from the lungs or nostrils caused by cold: (_obs._) spleen, choler: a genus of apetalous plants.--_n._ RHEUMAT'IC, one who suffers from rheumatism: (_pl._) rheumatic pains (_coll._).--_adjs._ RHEUMAT'IC, -AL, pertaining to or affected with rheumatism: choleric.--_n._ RHEUM'ATISM, a name still used somewhat loosely, but applying specially to an acute febrile disease, with swelling and pain in and around the larger joints.--_adjs._ RHEUMATIS'MAL; RHEUM'ATOID, resembling rheumatism.--_n._ RHEUMOPHTHAL'MIA, rheumatic ophthalmia.--_adj._ RHEUM'Y, full of or causing rheum. [L.,--Gr.
_rheuma_--_rhein_, to flow.]
RHEXIA, rek'si-a, _n._ a genus of polypetalous plants, native to North America, of the tribe RHEXIEae (rek-s[=i]'[=e]-[=e]). [L.,--Gr.
_rh[=e]xis_--_rh[=e]gnynai_, to break.]
RHIGOLENE, rig'[=o]-l[=e]n, _n._ a volatile product of petroleum distillation. [Gr. _rhigos_, cold, _elaion_, oil.]
RHINACANTHUS, r[=i]-na-kan'thus, _n._ a genus of gamopetalous plants in tropical Africa, India, &c. [Gr. _rhis_, _rhinos_, nose, _akanthos_, acanthus.]
RHINae, r[=i]'n[=e], _n.pl._ one of the main divisions of sharks. [L.,--Gr.
_rhin[=e]_, a file.]