vi. 急拉, 抽搐, 阵痛

vt. 急拉, 攫取, 抽动

n. 急拉, 抽搐, 阵痛

[医] 颤搐

Twitch \Twitch\, v. t. [imp. & p. p. {Twitched}; p. pr. & vb. n.
{Twitching}.] [OE. twicchen, fr. (doubtful) AS. twiccian;
akin to AS. angeltwicca a worm used for bait, literally, a
hook twitcher, LG. twikken to tweak, G. zwicken. Cf.
{Tweak}.]
To pull with a sudden jerk; to pluck with a short, quick
motion; to snatch; as, to twitch one by the sleeve; to twitch
a thing out of another's hand; to twitch off clusters of
grapes.

Thrice they twitched the diamond in her ear. --Pope.


Twitch \Twitch\, n.
1. The act of twitching; a pull with a jerk; a short, sudden,
quick pull; as, a twitch by the sleeve.

2. A short, spastic contraction of the fibers or muscles; a
simple muscular contraction; as, convulsive twitches; a
twitch in the side.

3. (Far.) A stick with a hole in one end through which passes
a loop, which can be drawn tightly over the upper lip or
an ear of a horse. By twisting the stick the compression
is made sufficiently painful to keep the animal quiet
during a slight surgical operation. --J. H. Walsh.