Definition of sheath

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Sheath (n.) One of the elytra of an insect.

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Sarcolemma :: Sarcolemma (n.) The very thin transparent and apparently homogeneous sheath which incloses a striated muscular fiber; the myolemma.
Involucrum :: Involucrum (n.) A sheath which surrounds the base of the lasso cells in the Siphonophora.
Mitten :: Mitten (n.) A covering for the hand, worn to defend it from cold or injury. It differs from a glove in not having a separate sheath for each finger..
Quiver :: Quiver (n.) A case or sheath for arrows to be carried on the person.
Mosquito :: Mosquito (n.) Any one of various species of gnats of the genus Culex and allied genera. The females have a proboscis containing, within the sheathlike labium, six fine, sharp, needlelike organs with which they puncture the skin of man and animals to suck the blood. These bites, when numerous, cause, in many persons, considerable irritation and swelling, with some pain. The larvae and pupae, called wigglers, are aquatic..
Schwann''s Sheath :: Schwann's sheath () The neurilemma.
Evagination :: Evagination (n.) The act of unsheathing.
Copper-bottomed :: Copper-bottomed (a.) Having a bottom made of copper, as a tin boiler or other vessel, or sheathed with copper, as a ship..
Sheathe :: Sheathe (v. t.) To obtund or blunt, as acrimonious substances, or sharp particles..
Tubicorn :: Tubicorn (n.) Any ruminant having horns composed of a bony axis covered with a horny sheath; a hollow-horned ruminant.
Sheather :: Sheather (n.) One who sheathes.
Vaginula :: Vaginula (n.) A little sheath, as that about the base of the pedicel of most mosses..
Sheathing :: Sheathing (n.) The first covering of boards on the outside wall of a frame house or on a timber roof; also, the material used for covering; ceiling boards in general..
Neurilemma :: Neurilemma (n.) The delicate outer sheath of a nerve fiber; the primitive sheath.
Copper :: Copper (v. t.) To cover or coat with copper; to sheathe with sheets of copper; as, to copper a ship..
Vaginant :: Vaginant (a.) Serving to in invest, or sheathe; sheathing..
Coleorhiza :: Coleorhiza (n.) A sheath in the embryo of grasses, inclosing the caulicle..
Sheathbill :: Sheathbill (n.) Either one of two species of birds composing the genus Chionis, and family Chionidae, native of the islands of the Antarctic seas..
Nonmedullated :: Nonmedullated (a.) Not medullated; (Anat.) without a medulla or marrow, or without a medullary sheath; as, a nonmedullated nerve fiber..
Beak :: Beak (n.) The bill or nib of a bird, consisting of a horny sheath, covering the jaws. The form varied much according to the food and habits of the bird, and is largely used in the classification of birds..
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