Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of shell is as below...

Enucleate :: Enucleate (v. t.) To bring or peel out, as a kernel from its enveloping husks its enveloping husks or shell..

Sea Trumpet :: Sea trumpet () Any large marine univalve shell of the genus Triton. See Triton.

Wampum :: Wampum (n.) Beads made of shells, used by the North American Indians as money, and also wrought into belts, etc., as an ornament..

Drill :: Drill (n.) A marine gastropod, of several species, which kills oysters and other bivalves by drilling holes through the shell. The most destructive kind is Urosalpinx cinerea..

Peduncle :: Peduncle (n.) A sort of stem by which certain shells and barnacles are attached to other objects. See Illust. of Barnacle.

Hydractinian :: Hydractinian (n.) Any species or marine hydroids, of the genus Hydractinia and allied genera. These hydroids form, by their rootstalks, a firm, chitinous coating on shells and stones, and esp. on spiral shells occupied by hermit crabs. See Illust. of Athecata..

Ostracea :: Ostracea (n. pl.) A division of bivalve mollusks including the oysters and allied shells.

Umbilicus :: Umbilicus (n.) A depression or opening in the center of the base of many spiral shells.

Physa :: Physa (n.) A genus of fresh-water Pulmonifera, having reversed spiral shells. See Pond snail, under Pond..

Limekiln :: Limekiln (n.) A kiln or furnace in which limestone or shells are burned and reduced to lime.

Conchology :: Conchology (n.) The science of Mollusca, and of the shells which they form; malacology..

Cornu Ammonis :: Cornu Ammonis () A fossil shell, curved like a ram's horn; an obsolete name for an ammonite..

Tortoise :: Tortoise (n.) having a color like that of a tortoise's shell, black with white and orange spots; -- used mostly to describe cats of that color..

Bitternut :: Bitternut (n.) The swamp hickory (Carya amara). Its thin-shelled nuts are bitter.

Ammonite :: Ammonite (n.) A fossil cephalopod shell related to the nautilus. There are many genera and species, and all are extinct, the typical forms having existed only in the Mesozoic age, when they were exceedingly numerous. They differ from the nautili in having the margins of the septa very much lobed or plaited, and the siphuncle dorsal. Also called serpent stone, snake stone, and cornu Ammonis..

Nautiloid :: Nautiloid (a.) Like or pertaining to the nautilus; shaped like a nautilus shell.

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..

Siphoniferous :: Siphoniferous (a.) Siphon-bearing, as the shell of the nautilus and other cephalopods..

Stoolball :: Stool (n.) Material, such as oyster shells, spread on the sea bottom for oyster spat to adhere to..

Orthoceras :: Orthoceras (n.) An extinct genus of Paleozoic Cephalopoda, having a long, straight, conical shell. The interior is divided into numerous chambers by transverse septa..

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