Definition of shell

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Shell (n.) The covering, or outside part, of a nut; as, a hazelnut shell..

Lern More About Shell

Crab :: Crab (n.) One of the brachyuran Crustacea. They are mostly marine, and usually have a broad, short body, covered with a strong shell or carapace. The abdomen is small and curled up beneath the body..
Periostracum :: Periostracum (n.) A chitinous membrane covering the exterior of many shells; -- called also epidermis.
Inoceramus :: Inoceramus (n.) An extinct genus of large, fossil, bivalve shells,allied to the mussels. The genus is characteristic of the Cretaceous period..
Ostracea :: Ostracea (n. pl.) A division of bivalve mollusks including the oysters and allied shells.
Helicoid :: Helicoid (a.) Spiral; curved, like the spire of a univalve shell..
Yet :: Yet (n.) Any one of several species of large marine gastropods belonging to the genus Yetus, or Cymba; a boat shell..
Nudibranchiata :: Nudibranchiata (n. pl.) A division of opisthobranchiate mollusks, having no shell except while very young. The gills are naked and situated upon the back or sides. See Ceratobranchia..
Littorina :: Littorina (n.) A genus of small pectinibranch mollusks, having thick spiral shells, abundant between tides on nearly all rocky seacoasts. They feed on seaweeds. The common periwinkle is a well-known example. See Periwinkle..
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..
Splintery :: Splinterproof (a.) Proof against the splinters, or fragments, of bursting shells..
Nautiloid :: Nautiloid (a.) Like or pertaining to the nautilus; shaped like a nautilus shell.
Shedder :: Shedder (n.) A crab in the act of casting its shell, or immediately afterwards while still soft; -- applied especially to the edible crabs, which are most prized while in this state..
Decollated :: Decollated (a.) Decapitated; worn or cast off in the process of growth, as the apex of certain univalve shells..
Murex :: Murex (n.) A genus of marine gastropods, having rough, and frequently spinose, shells, which are often highly colored inside; the rock shells. They abound in tropical seas..
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..
Lamella :: Lamella (n.) a thin plate or scale of anything, as a thin scale growing from the petals of certain flowers; or one of the thin plates or scales of which certain shells are composed..
Turnip-shell :: Turnip-shell (n.) Any one of several large, thick, spiral marine shells belonging to Rapa and allied genera, somewhat turnip-shaped..
Spindle :: Spindle (n.) Any marine univalve shell of the genus Rostellaria; -- called also spindle stromb.
Slug :: Slug (n.) Any one of numerous species of terrestrial pulmonate mollusks belonging to Limax and several related genera, in which the shell is either small and concealed in the mantle, or altogether wanting. They are closely allied to the land snails..
Testaceous :: Testaceous (a.) Of or pertaining to shells; consisted of a hard shell, or having a hard shell..
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