sheath : Idioms & Phrases
Index
Knitting sheath
- a sheath to receive the end of a needle in knitting.
Webster 1913
Medullary sheath
-
noun a layer of myelin encasing (and insulating) the axons of medullated nerve fibers
medullary sheath.
WordNet
(Anat.) , the layer of white semifluid substance (myelin), between the primitive sheath and axis cylinder of a medullated nerve fiber.
Webster 1913
myelin sheath
-
noun a layer of myelin encasing (and insulating) the axons of medullated nerve fibers
medullary sheath.
WordNet
Primitive sheath
- .
(Anat.) SeeNeurilemma .
Webster 1913
schwan's sheath
Schwan's" sheath`
Etymology
So called from TheodorDefinitions
(Anat.) The neurilemma.
Webster 1913
Sheath knife
-
noun a knife with a fixed blade that is carried in a sheath
case knife.
WordNet
- a knife with a fixed blade, carried in a sheath.
Webster 1913
Sheath of Schwann
- .
(Anat.) SeeSchwann's sheath .
Webster 1913
sheath pile
-
noun a pile in a row of piles driven side by side to retain earth or prevent seepage
sheet pile; sheet piling.
WordNet
sheath-winged
Sheath"-winged` adjective
Definitions
(Zoöl.) Having elytra, or wing cases, as a beetle.
Webster 1913
Tentacle sheath
(Zoöl.) , a sheathlike structure around the base of the tentacles of many mollusks.