Definition of shell

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Shell (n.) The hard calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates. In some mollusks, as the cuttlefishes, it is internal, or concealed by the mantle. Also, the hard covering of some vertebrates, as the armadillo, the tortoise, and the like..

Lern More About Shell

Cannonade :: Cannonade (n.) The act of discharging cannon and throwing ball, shell, etc., for the purpose of destroying an army, or battering a town, ship, or fort; -- usually, an attack of some continuance..
Tabby :: Tabby (n.) A mixture of lime with shells, gravel, or stones, in equal proportions, with an equal proportion of water. When dry, this becomes as hard as rock..
Dislodge :: Dislodge (v. t.) To drive from a lodge or place of rest; to remove from a place of quiet or repose; as, shells resting in the sea at a considerate depth are not dislodged by storms..
Roughcast :: Roughcast (n.) A kind of plastering made of lime, with a mixture of shells or pebbles, used for covering buildings..
Beard :: Beard (v. t.) To deprive of the gills; -- used only of oysters and similar shellfish.
Shell :: Shell (n.) An engraved copper roller used in print works.
Pallial :: Pallial (a.) Of or pretaining to a mantle, especially to the mantle of mollusks; produced by the mantle; as, the pallial line, or impression, which marks the attachment of the mantle on the inner surface of a bivalve shell. See Illust. of Bivalve..
Tortoise :: Tortoise (n.) a tortoise-shell cat.
Shell-lac :: Shell-lac (n.) Alt. of Shella.
Prop :: Prop (n.) A shell, used as a die. See Props..
Univalve :: Univalve (n.) A shell consisting of one valve only; a mollusk whose shell is composed of a single piece, as the snails and conchs..
Ostreaceous :: Ostreaceous (a.) Of or pertaining to an oyster, or to a shell; shelly..
Mytilus :: Mytilus (n.) A genus of marine bivalve shells, including the common mussel. See Illust. under Byssus..
Wing-shell :: Wing-shell (n.) Any marine gastropod shell of the genus Strombus. See Strombus.
Trivalve :: Trivalve (n.) Anything having three valves, especially a shell..
Uncapper :: Uncapper (n.) An instrument for removing an explode cap from a cartridge shell.
Holostomatous :: Holostomatous (a.) Having an entire aperture; -- said of many univalve shells.
Testudinarious :: Testudinarious (a.) Of or pertaining to the shell of a tortoise; resembling a tortoise shell; having the color or markings of a tortoise shell.
Chilostomata :: Chilostomata (n. pl.) An extensive suborder of marine Bryozoa, mostly with calcareous shells. They have a movable lip and a lid to close the aperture of the cells..
Operculum :: Operculum (n.) The lid closing the aperture of various species of shells, as the common whelk. See Illust. of Gastropoda..
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