A minute smooth rodlike or fusiform structure found in the tissues of many Turbellaria.

A suborder of Turbellaria including those that have a simple cylindrical, or saclike, stomach, without an intestine.

Of or pertaining to the Rhabdocoela.

See Sagittal.

A minute calcareous rodlike structure found both at the surface and the bottom of the ocean; -- supposed by some to be a calcareous alga.

Same as Rabdology.

One of numerous minute rodlike structures formed of two or more cells situated behind the retinulae in the compound eyes of insects, etc. See Illust. under Ommatidium.

Same as Rabdomancy.

One of the several parts composing a rhabdom.

An extinct division of Hydrozoa which includes the graptolities.

A genus of marine Bryozoa in which the tubular cells have a centralchitinous axis and the tentacles are borne on a bilobed lophophore. It is the type of the order Pterobranchia, or Podostomata

A minute sphere composed of rhabdoliths.

See Rachialgia.

Of or pertaining to the rhachis; as, the rhachidian teeth of a mollusk.

A division of marine gastropods having a retractile proboscis and three longitudinal rows of teeth on the radula. It includes many of the large ornamental shells, as the miters, murices, olives, purpuras, volutes, and whelks. See Illust. in the Appendix.

A branch of inflorescence; the zigzag axis on which the florets are arranged in the spikelets of grasses.

Having gular teeth formed by a peculiar modification of the inferior spines of some of the vertebrae, as certain South African snakes (Dasypeltis) which swallow birds' eggs and use these gular teeth to crush them.

The spine.

See Rachitis.

Of or pertaining to Rhadamanthus; rigorously just; as, a Rhadamanthine judgment.

One of the three judges of the infernal regions; figuratively, a strictly just judge.

Rhetain.

Pertining to, or of the same horizon as, certain Mesozoic strata of the Rhetian Alps. These strata are regarded as closing the Triassic period. See the Chart of Geology.

A variety of the mineral cyanite.

See Ramadan.

Of or pertaining to a natural order of shrubs and trees (Rhamnaceae, or Rhamneae) of which the buckthorn (Rhamnus) is the type. It includes also the New Jersey tea, the supple-jack, and one of the plants called lotus (Zizyphus).

A genus of shrubs and small trees; buckthorn. The California Rhamnus Purshianus and the European Rhamnus catharticus are used in medicine. The latter is used for hedges.

A genus of pterodactyls in which the elongated tail supported a leathery expansion at the tip.

The horny covering of the bill of birds.

The continuation of the seed stalk along the side of an anatropous ovule or seed, forming a ridge or seam.

Minute transparent, often needle-shaped, crystals found in the tissues of plants.

Chrysophanic acid.

A rhapsodist.

A rhapsodist.

Of or pertaining to rhapsody; consisting of rhapsody; hence, confused; unconnected.

Anciently, one who recited or composed a rhapsody; especially, one whose profession was to recite the verses of Hormer and other epic poets.

To utter rhapsodies.

Divination by means of verses.

A recitation or song of a rhapsodist; a portion of an epic poem adapted for recitation, or usually recited, at one time; hence, a division of the Iliad or the Odyssey; -- called also a book.

The powerfully astringent root of a half-shrubby Peruvian plant (Krameria triandra). It is used in medicine and to color port wine.

Any one of three species of large South American ostrichlike birds of the genera Rhea and Pterocnemia. Called also the American ostrich.

A suborder of struthious birds including the rheas.

The peele.

Pertaining to, or designating, an acid (commonly called chrysophanic acid) found in rhubarb (Rheum).

Chrysophanic acid.

One of the berries or drupes of the European buckthorn; also, the buckthorn itself.

The doctrine of propositions or sentences.

Of or pertaining to Rheimis, or Reima, in France.

Of or pertaining to the river Rhine; as, Rhenish wine. Rhine wine.

A metallic wire used for regulating the resistance of a circuit, or varying the strength of an electric current, by inserting a greater or less length of it in the circuit.

A kind of motor speed controller permitting of very gradual variation in speed and of reverse. It is especially suitable for use with motor driven machine tools.

An instrument for measuring currents, especially the force or intensity of electrical currents; a galvanometer.

Of or pertaining to a rheometer or rheometry.

The measurement of the force or intensity of currents.

Any apparatus by which an electrical current is originated.

A connecting wire of an electric or voltaic apparatus, traversed by a current. One of the poles of a voltaic battery; an electrode.

An instrument for detecting the presence or movement of currents, as of electricity.

A contrivance for adjusting or regulating the strength of electrical currents, operating usually by the intercalation of resistance which can be varied at will.

An instrument which periodically or otherwise interrupts an electric current.

An instrument for reversing the direction of an electric current.

Pertaining to the ancient Rhaeti, or Rhaetians, or to Rhaetia, their country; as, the Rhetian Alps, now the country of Tyrol and the Grisons.

Same as Rhaetic.

Same as Rhaetizite.

A rhetorician.

The art of composition; especially, elegant composition in prose.

Of or pertaining to rhetoric; according to, or exhibiting, rhetoric; oratorical; as, the rhetorical art; a rhetorical treatise; a rhetorical flourish.

To play the orator.

Rhetorical amplification.

Suitable to a master of rhetoric.

To represent by a figure of rhetoric, or by personification.

A serous or mucous discharge, especially one from the eves or nose.

One affected with rheumatism.

A general disease characterized by painful, often multiple, local inflammations, usually affecting the joints and muscles, but also extending sometimes to the deeper organs, as the heart.

Of or pertaining to rheumatism.

Of or resembling rheum or rheumatism.

Pertaining to, or characterized by, rheum.

The class of skin disease developed by the dartrous diathesis. See under Dartrous.

Of or pertaining to rheum; abounding in, or causing, rheum; affected with rheum.

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.

See Rhyme.

Og or pertaining to the nose or olfactory organs.

The borele.

A water course; a ditch.

Of or pertaining to the rhinencephalon.

The division of the brain in front of the prosencephalon, consisting of the two olfactory lobes from which the olfactory nerves arise.

A colorless stone of high luster, made of paste. It is much used as an inexpensive ornament.

Inflammation of the nose; esp., inflammation of the mucous membrane of the nostrils.

Gold and silver, or money.

Of or pertaining to the rhinoceros; resembling the rhinoceros, or his horn.

Any pachyderm belonging to the genera Rhinoceros, Atelodus, and several allied genera of the family Rhinocerotidae, 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.

A rhinoceros.

Of or pertaining to the rhinoceros.

A concretion formed within the cavities of the nose.

Of or pertaining to rhinology.

One skilled in rhinology.

The science which treats of the nose, and its diseases.

Any species of the genus Rhinilophus, or family Rhinolophidae, having a horseshoe-shaped nasal crest; a horseshoe bat.

Like or pertaining to the rhinolophids, or horseshoe bats.

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.

Of or pertaining to rhinoplasty; as, a rhinoplastic operation.

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.

Any old-world bat of the genus Rhinopoma. The rhinopomes have a long tail extending beyond the web, and inhabit caves and tombs.

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.

A small mirror for use in rhinoscopy.

Of or pertaining to rhinoscopy.

The examination or study of the soft palate, posterior nares, etc., by means of a laryngoscopic mirror introduced into the pharynx.

The sheath of the upper mandible of a bird.

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.

One of the Rhipiptera, a group of insects having wings which fold like a fan; a strepsipter.

Same as Rhipipter.

Producing flowers from a rootstock, or apparently from a root.

A rootlike filament or hair growing from the stems of mosses or on lichens; a rhizoid.

Having perennial rootstocks or bulbs, but annual flowering stems; -- said of all perennial herbs.

A division of Pectostraca including saclike parasites of Crustacea. They adhere by rootlike extensions of the head. See Illusration in Appendix.

A reptile whose teeth are rooted in sockets, as the crocodile.

Prodicing roots.

One of a proposed class of flowering plants growning on the roots of other plants and destitute of green foliage.

A rootlike appendage.

Same as Rhizome.

Having the nature or habit of a rhizome or rootstock.