Definition of shell

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Shell (n.) The outer frame or case of a block within which the sheaves revolve.

Lern More About Shell

Truncated :: Truncated (a.) Lacking the apex; -- said of certain spiral shells in which the apex naturally drops off.
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..
Slit-shell :: Slit-shell (n.) Any species of Pleurotomaria, a genus of beautiful, pearly, spiral gastropod shells having a deep slit in the outer lip. Many fossil species are known, and a few living ones are found in deep water in tropical seas..
Wing-shell :: Wing-shell (n.) Any one of various species of marine bivalve shells belonging to the genus Avicula, in which the hinge border projects like a wing..
Purpura :: Purpura (n.) A genus of marine gastropods, usually having a rough and thick shell. Some species yield a purple dye..
Pelagian :: Pelagian (a.) Of or pertaining to the sea; marine; pelagic; as, pelagian shells..
Labium :: Labium (n.) Inner margin of the aperture of a shell.
Reticularia :: Reticularia (n. pl.) An extensive division of rhizopods in which the pseudopodia are more or less slender and coalesce at certain points, forming irregular meshes. It includes the shelled Foraminifera, together with some groups which lack a true shell..
Sea Trumpet :: Sea trumpet () Any large marine univalve shell of the genus Triton. See Triton.
Tusk :: Tusk (n.) A toothshell, or Dentalium; -- called also tusk-shell..
Props :: Props (n. pl.) A game of chance, in which four sea shells, each called a prop, are used instead of dice..
Cockled :: Cockled (a.) Inclosed in a shell.
Chip :: Chip (v. t.) To break or crack, or crack off a portion of, as of an eggshell in hatching, or a piece of crockery..
Septal :: Septal (a.) Of or pertaining to a septum or septa, as of a coral or a shell..
Testudo :: Testudo (n.) A kind of musical instrument. a species of lyre; -- so called in allusion to the lyre of Mercury, fabled to have been made of the shell of a tortoise..
Dodman :: Dodman (n.) A snail; also, a snail shell; a hodmandod..
Exuviation :: Exuviation (n.) The rejecting or casting off of some part, more particularly, the outer cuticular layer, as the shells of crustaceans, skins of snakes, etc.; molting; ecdysis..
Buccinoid :: Buccinoid (a.) Resembling the genus Buccinum, or pertaining to the Buccinidae, a family of marine univalve shells. See Whelk, and Prosobranchiata..
Escaloped :: Escaloped (a.) Covered with a pattern resembling a series of escalop shells, each of which issues from between two others. Its appearance is that of a surface covered with scales..
Determination :: Determination (n.) The act of determining the relations of an object, as regards genus and species; the referring of minerals, plants, or animals, to the species to which they belong; classification; as, I am indebted to a friend for the determination of most of these shells..
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