Meaning of SHEATH
| Pronunciation: | | sheeth
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 WordNet Dictionary |
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| | Definition: | |
- [n] a dress suitable for formal occasions
- [n] a protective covering for a knife or sword
- [n] an enveloping structure or covering enclosing an animal or plant organ or part
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SHEATH is a 6 letter word that starts with S. |
| | Synonyms: | | case, cocktail dress |
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| | 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 |
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| | Definition: | | \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.
--Spenser.
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.
{Sheath of Schwann}. (Anat.) See {Schwann's sheath}.
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| Biology Dictionary |
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- 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.
- A layer of outer membrane covering the bacterial flagella.
- A protective covering.
- The lower part of leaf enveloping stem or culm.
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