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Meaning of SHEATH

Pronunciation:  sheeth

WordNet Dictionary
  1. [n]  a dress suitable for formal occasions
  2. [n]  a protective covering for a knife or sword
  3. [n]  an enveloping structure or covering enclosing an animal or plant organ or part

SHEATH is a 6 letter word that starts with S.


 Synonyms: case, cocktail dress
 See Also: aglet, aiglet, cot, cover, covering, dress, fingerstall, frock, holster, husk, lorica, medullary sheath, myelin sheath, natural covering, neurilemma, neurolemma, protection, protective cover, protective covering, scabbard, theca



Webster's 1913 Dictionary
\Sheath\, n. [OE. schethe, AS. sc[=ae][eth],
sce['a][eth], sc[=e][eth]; akin to OS. sk[=e][eth]ia, D.
scheede, G. scheide, OHG. sceida, Sw. skida, Dan. skede,
Icel. skei[eth]ir, pl., and to E. shed, v.t., originally
meaning, to separate, to part. See {Shed}.]
1. A case for the reception of a sword, hunting knife, or
   other long and slender instrument; a scabbard.

         The dead knight's sword out of his sheath he drew.

2. Any sheathlike covering, organ, or part. Specifically:
   (a) (Bot.) The base of a leaf when sheathing or investing
       a stem or branch, as in grasses.
   (b) (Zo["o]l.) One of the elytra of an insect.

{Medullary sheath}. (Anat.) See under {Medullary}.

{Primitive sheath}. (Anat.) See {Neurilemma}.

{Sheath knife}, a knife with a fixed blade, carried in a

{Sheath of Schwann}. (Anat.) See {Schwann's sheath}.

Biology Dictionary
    1. A secreted, tubular structure formed around a chain of cells or around a bundle of filaments; cells within a sheath may or may not subsequently separate from the sheath.
    2. A layer of outer membrane covering the bacterial flagella.
    1. A protective covering.
    2. The lower part of leaf enveloping stem or culm.