Definition of tube

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Tube (n.) A more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See Illust. of Tubeworm..

Lern More About Tube

Calibrate :: Calibrate (v. i.) To ascertain the caliber of, as of a thermometer tube; also, more generally, to determine or rectify the graduation of, as of the various standards or graduated instruments..
Bulge :: Bulge (n.) The bilge or protuberant part of a cask.
Starch :: Starch (n.) A widely diffused vegetable substance found especially in seeds, bulbs, and tubers, and extracted (as from potatoes, corn, rice, etc.) as a white, glistening, granular or powdery substance, without taste or smell, and giving a very peculiar creaking sound when rubbed between the fingers. It is used as a food, in the production of commercial grape sugar, for stiffening linen in laundries, in making paste, etc..
Uriniparous :: Uriniparous (a.) Producing or preparing urine; as, the uriniparous tubes in the cortical portion of the kidney..
Jag :: Jag (n.) A notch; a cleft; a barb; a ragged or sharp protuberance; a denticulation.
Fulgurite :: Fulgurite (n.) A vitrified sand tube produced by the striking of lightning on sand; a lightning tube; also, the portion of rock surface fused by a lightning discharge..
Chufa :: Chufa (n.) A sedgelike plant (Cyperus esculentus) producing edible tubers, native about the Mediterranean, now cultivated in many regions; the earth almond..
Extuberation :: Extuberation (n.) Protuberance.
Opeidoscope :: Opeidoscope (n.) An instrument, consisting of a tube having one end open and the other end covered with a thin flexible membrance to the center of which is attached a small mirror. It is used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds produced at the open end of the tube, as by speaking or singing into it..
Tubulous :: Tubulous (a.) Containing, or consisting of, small tubes; specifically (Bot.), composed wholly of tubulous florets; as, a tubulous compound flower..
Drawing :: Drawing (n.) The process of stretching or spreading metals as by hammering, or, as in forming wire from rods or tubes and cups from sheet metal, by pulling them through dies..
Turreted :: Turreted (a.) Furnished with a turret or turrets; specifically (Zool.), having the whorls somewhat flattened on the upper side and often ornamented by spines or tubercles; -- said of certain spiral shells..
Blowtube :: Blowtube (n.) A similar instrument, commonly of tin, used by boys for discharging paper wads and other light missiles..
Gnarl :: Gnarl (n.) a knot in wood; a large or hard knot, or a protuberance with twisted grain, on a tree..
Tubular :: Tubular (a.) Having the form of a tube, or pipe; consisting of a pipe; fistular; as, a tubular snout; a tubular calyx. Also, containing, or provided with, tubes..
Iris :: Iris (n.) A genus of plants having showy flowers and bulbous or tuberous roots, of which the flower-de-luce (fleur-de-lis), orris, and other species of flag are examples. See Illust. of Flower-de-luce..
Powderflask :: Powderflask (n.) A flask in which gunpowder is carried, having a charging tube at the end..
Tuberculous :: Tuberculous (a.) Having tubercles; affected with, or characterized by, tubercles; tubercular..
Hub :: Hub (n.) A rough protuberance or projecting obstruction; as, a hub in the road. [U.S.] See Hubby..
Tun-bellied :: Tun-bellied (a.) Having a large, protuberant belly, or one shaped like a tun; pot-bellied..
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