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

Columbella :: Columbella (n.) A genus of univalve shells, abundant in tropical seas. Some species, as Columbella mercatoria, were formerly used as shell money..
Paucispiral :: Paucispiral (a.) Having few spirals, or whorls; as, a paucispiral operculum or shell..
Polythalamia :: Polythalamia (n. pl.) A division of Foraminifera including those having a manychambered shell.
Frogshell :: Frogshell (n.) One of numerous species of marine gastropod shells, belonging to Ranella and allied genera..
Whelky :: Whelky (a.) Shelly.
Mineralogist :: Mineralogist (n.) A carrier shell (Phorus).
Planorbis :: Planorbis (n.) Any fresh-water air-breathing mollusk belonging to Planorbis and other allied genera, having shells of a discoidal form..
Gulgul :: Gulgul (n.) A cement made in India from sea shells, pulverized and mixed with oil, and spread over a ship's bottom, to prevent the boring of worms..
Corneocalcareous :: Corneocalcareous (a.) Formed of a mixture of horny and calcareous materials, as some shells and corals..
Valve :: Valve (n.) One of the two similar portions of the shell of a diatom.
Shelling :: Shelling (n.) Groats; hulled oats.
Gastropoda :: Gastropoda (n. pl.) One of the classes of Mollusca, of great extent. It includes most of the marine spiral shells, and the land and fresh-water snails. They generally creep by means of a flat, muscular disk, or foot, on the ventral side of the body. The head usually bears one or two pairs of tentacles. See Mollusca..
Electrophorus :: Electrophorus (n.) An instrument for exciting electricity, and repeating the charge indefinitely by induction, consisting of a flat cake of resin, shelllac, or ebonite, upon which is placed a plate of metal..
Septum :: Septum (n.) One of the transverse partitions dividing the shell of a mollusk, or of a rhizopod, into several chambers. See Illust. under Nautilus..
Asiphonate :: Asiphonate (a.) Destitute of a siphon or breathing tube; -- said of many bivalve shells.
Boat Shell :: Boat shell () A marine univalve shell of the genus Cymba.
Midden :: Midden (n.) An accumulation of refuse about a dwelling place; especially, an accumulation of shells or of cinders, bones, and other refuse on the supposed site of the dwelling places of prehistoric tribes, -- as on the shores of the Baltic Sea and in many other places. See Kitchen middens..
Petalism :: Petalism (n.) A form of sentence among the ancient Syracusans by which they banished for five years a citizen suspected of having dangerous influence or ambition. It was similar to the ostracism in Athens; but olive leaves were used instead of shells for ballots.
Shelling :: Shelling (p. pr. & vb. n.) of Shel.
Discoid :: Discoid (n.) Anything having the form of a discus or disk; particularly, a discoid shell..
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