英文字典中文字典Word104.com

The Collaborative International Dictionary of English v.0.48 (gcide)

Shear \Shear\, v. i.
1. To deviate. See {Sheer}.
[1913 Webster]

2. (Engin.) To become more or less completely divided, as a
body under the action of forces, by the sliding of two
contiguous parts relatively to each other in a direction
parallel to their plane of contact.
[1913 Webster]


Shear \Shear\, n. [AS. sceara. See {Shear}, v. t.]
1. A pair of shears; -- now always used in the plural, but
formerly also in the singular. See {Shears}.
[1913 Webster]

On his head came razor none, nor shear. --Chaucer.
[1913 Webster]

Short of the wool, and naked from the shear.
--Dryden.
[1913 Webster]

2. A shearing; -- used in designating the age of sheep.
[1913 Webster]

After the second shearing, he is a two-shear ram; .
. . at the expiration of another year, he is a
three-shear ram; the name always taking its date
from the time of shearing. --Youatt.
[1913 Webster]

3. (Engin.) An action, resulting from applied forces, which
tends to cause two contiguous parts of a body to slide
relatively to each other in a direction parallel to their
plane of contact; -- also called {shearing stress}, and
{tangential stress}.
[1913 Webster]

4. (Mech.) A strain, or change of shape, of an elastic body,
consisting of an extension in one direction, an equal
compression in a perpendicular direction, with an
unchanged magnitude in the third direction.
[1913 Webster]

{Shear blade}, one of the blades of shears or a shearing
machine.

{Shear hulk}. See under {Hulk}.

{Shear steel}, a steel suitable for shears, scythes, and
other cutting instruments, prepared from fagots of
blistered steel by repeated heating, rolling, and tilting,
to increase its malleability and fineness of texture.
[1913 Webster]


Shear \Shear\ (sh[=e]r), v. t. [imp. {Sheared}or {Shore};p. p.
{Sheared} or {Shorn}; p. pr. & vb. n. {Shearing}.] [OE.
sheren, scheren, to shear, cut, shave, AS. sceran, scieran,
scyran; akin to D. & G. scheren, Icel. skera, Dan. ski?re,
Gr. ???. Cf. {Jeer}, {Score}, {Shard}, {Share}, {Sheer} to
turn aside.]
1. To cut, clip, or sever anything from with shears or a like
instrument; as, to shear sheep; to shear cloth.
[1913 Webster]

Note: It is especially applied to the cutting of wool from
sheep or their skins, and the nap from cloth.
[1913 Webster]

2. To separate or sever with shears or a similar instrument;
to cut off; to clip (something) from a surface; as, to
shear a fleece.
[1913 Webster]

Before the golden tresses . . . were shorn away.
--Shak.
[1913 Webster]

3. To reap, as grain. [Scot.] --Jamieson.
[1913 Webster]

4. Fig.: To deprive of property; to fleece.
[1913 Webster]

5. (Mech.) To produce a change of shape in by a shear. See
{Shear}, n., 4.
[1913 Webster]