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

"aleurone :: Aleurone (n.) An albuminoid substance which occurs in minute grains (protein granules) in maturing seeds and tubers; -- supposed to be a modification of protoplasm..
Snapdragon :: Snapdragon (n.) A West Indian herb (Ruellia tuberosa) with curiously shaped blue flowers.
Chimney :: Chimney (n.) That part of a building which contains the smoke flues; esp. an upright tube or flue of brick or stone, in most cases extending through or above the roof of the building. Often used instead of chimney shaft..
Pitot''s Tube :: Pitot's tube () A bent tube used to determine the velocity of running water, by placing the curved end under water, and observing the height to which the fluid rises in the tube; a kind of current meter..
Flue :: Flue (n.) A pipe or passage for conveying flame and hot gases through surrounding water in a boiler; -- distinguished from a tube which holds water and is surrounded by fire. Small flues are called fire tubes or simply tubes.
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..
Epiphyllum :: Epiphyllum (n.) A genus of cactaceous plants having flattened, jointed stems, and petals united in a tube. The flowers are very showy, and several species are in cultivation..
Yam :: Yam (n.) A large, esculent, farinaceous tuber of various climbing plants of the genus Dioscorea; also, the plants themselves. Mostly natives of warm climates. The plants have netted-veined, petioled leaves, and pods with three broad wings. The commonest species is D. sativa, but several others are cultivated..
Tracheobranchia :: Tracheobranchia (n.) One of the gill-like breathing organs of certain aquatic insect larvae. They contain tracheal tubes somewhat similar to those of other insects.
Belly :: Belly (v. i.) To swell and become protuberant, like the belly; to bulge..
Earthnut :: Earthnut (n.) The esculent tubers of the umbelliferous plants Bunium flexuosum and Carum Bulbocastanum.
Embossment :: Embossment (n.) A bosslike prominence; figure in relief; raised work; jut; protuberance; esp., a combination of raised surfaces having a decorative effect..
Diverticulum :: Diverticulum (n.) A blind tube branching out of a longer one.
Nargileh :: Nargileh (n.) An apparatus for smoking tobacco. It has a long flexible tube, and the smoke is drawn through water..
Oreosoma :: Oreosoma (n. pl.) A genus of small oceanic fishes, remarkable for the large conical tubercles which cover the under surface..
Turbot :: Turbot (n.) A large European flounder (Rhombus maximus) highly esteemed as a food fish. It often weighs from thirty to forty pounds. Its color on the upper side is brownish with small roundish tubercles scattered over the surface. The lower, or blind, side is white. Called also bannock fluke..
Stapes :: Stapelia (n.) An extensive and curious genus of African plants of the natural order Asclepiadaceae (Milkweed family). They are succulent plants without leaves, frequently covered with dark tubercles giving them a very grotesque appearance. The odor of the blossoms is like that of carrion..
Embossed :: Embossed (a.) Swollen; protuberant.
Mygale :: Mygale (n.) A genus of very large hairy spiders having four lungs and only four spinnerets. They do not spin webs, but usually construct tubes in the earth, which are often furnished with a trapdoor. The South American bird spider (Mygale avicularia), and the crab spider, or matoutou (M. cancerides) are among the largest species. Some of the species are erroneously called tarantulas, as the Texas tarantula (M. Hentzii)..
Knappy :: Knappy (a.) Having knaps; full of protuberances or humps; knobby.
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