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Stentor :: Stentor (n.) Any species of ciliated Infusoria belonging to the genus Stentor and allied genera, common in fresh water. The stentors have a bell-shaped, or cornucopia-like, body with a circle of cilia around the spiral terminal disk. See Illust. under Heterotricha..

Involuted :: Involuted (a.) Rolled inward spirally.

Suspiration :: Suspiral (n.) A spring of water passing under ground toward a cistern or conduit.

Fusee :: Fusee (n.) The cone or conical wheel of a watch or clock, designed to equalize the power of the mainspring by having the chain from the barrel which contains the spring wind in a spiral groove on the surface of the cone in such a manner that the diameter of the cone at the point where the chain acts may correspond with the degree of tension of the spring..

Nautilus :: Nautilus (n.) The only existing genus of tetrabranchiate cephalopods. About four species are found living in the tropical Pacific, but many other species are found fossil. The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a continuous and nearly central tube or siphuncle. See Tetrabranchiata..

Ionic :: Ionic (a.) Pertaining to the Ionic order of architecture, one of the three orders invented by the Greeks, and one of the five recognized by the Italian writers of the sixteenth century. Its distinguishing feature is a capital with spiral volutes. See Illust. of Capital..

Spirulate :: Spirula (n.) A genus of cephalopods having a multilocular, internal, siphunculated shell in the form of a flat spiral, the coils of which are not in contact..

Scalaria :: Scalaria (n.) Any one of numerous species of marine gastropods of the genus Scalaria, or family Scalaridae, having elongated spiral turreted shells, with rounded whorls, usually crossed by ribs or varices. The color is generally white or pale. Called also ladder shell, and wentletrap. See Ptenoglossa, and Wentletrap..

Turnip-shell :: Turnip-shell (n.) Any one of several large, thick, spiral marine shells belonging to Rapa and allied genera, somewhat turnip-shaped..

Vertigo :: Vertigo (n.) Any one of numerous species of small land snails belonging to the genus Vertigo, having an elongated or conical spiral shell and usually teeth in the aperture..

Scutibranchiata :: Scutibranchiata (n. pl.) An order of gastropod Mollusca having a heart with two auricles and one ventricle. The shell may be either spiral or shieldlike.

Spired :: Spire (n.) The part of a spiral generated in one revolution of the straight line about the pole. See Spiral, n..

Cochleated :: Cochleated (a.) Having the form of a snail shell; spiral; turbinated.

Elater :: Elater (n.) An elastic spiral filament for dispersing the spores, as in some liverworts..

Musculospiral :: Musculospiral (a.) Of or pertaining to the muscles, and taking a spiral course; -- applied esp. to a large nerve of the arm..

Twining :: Twining (a.) The act of one who, or that which, twines; (Bot.) the act of climbing spirally..

Koodoo :: Koodoo (n.) A large South African antelope (Strepsiceros kudu). The males have graceful spiral horns, sometimes four feet long. The general color is reddish or grayish brown, with eight or nine white bands on each side, and a pale dorsal stripe. The old males become dark bluish gray, due to the skin showing through the hair. The females are hornless. Called also nellut..

Heliciform :: Heliciform (a.) Having the form of a helix; spiral.

Sinistrorsal :: Sinistrorsal (a.) Rising spirally from right to left (of the spectator); sinistrorse.

Turbinal :: Turbinal (a.) Rolled in a spiral; scroll-like; turbinate; -- applied to the thin, plicated, bony or cartilaginous plates which support the olfactory and mucous membranes of the nasal chambers..

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