Acorn-shell |
One of the sessile cirripeds; a barnacle of the genus Balanus. See Barnacle. |
n. |
Argus shell |
A species of shell (Cypraea argus), beautifully variegated with spots resembling those in a peacock's tail. |
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Ark shell |
A marine bivalve shell belonging to the genus Arca and its allies. |
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Boat shell |
A marine gastropod of the genus Crepidula. The species are numerous. It is so named from its form and interior deck. |
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Boat shell |
A marine univalve shell of the genus Cymba. |
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Bubble shell |
A marine univalve shell of the genus Bulla and allied genera, belonging to the Tectibranchiata. |
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Mask shell |
Any spiral marine shell of the genus Persona, having a curiously twisted aperture. |
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Pouch-shell |
A small British and American pond snail (Bulinus hypnorum). |
n. |
Rice-shell |
Any one of numerous species of small white polished marine shells of the genus Olivella. |
n. |
Shell |
A hard outside covering, as of a fruit or an animal. |
n. |
Shell |
The covering, or outside part, of a nut; as, a hazelnut shell. |
n. |
Shell |
A pod. |
n. |
Shell |
The hard covering of an egg. |
n. |
Shell |
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. |
n. |
Shell |
Hence, by extension, any mollusks having such a covering. |
n. |
Shell |
A hollow projectile, of various shapes, adapted for a mortar or a cannon, and containing an explosive substance, ignited with a fuse or by percussion, by means of which the projectile is burst and its fragments scattered. See Bomb. |
n. |
Shell |
The case which holds the powder, or charge of powder and shot, used with breechloading small arms. |
n. |
Shell |
Any slight hollow structure; a framework, or exterior structure, regarded as not complete or filled in; as, the shell of a house. |
n. |
Shell |
A coarse kind of coffin; also, a thin interior coffin inclosed in a more substantial one. |
n. |
Shell |
An instrument of music, as a lyre, -- the first lyre having been made, it is said, by drawing strings over a tortoise shell. |
n. |