twitch

To twitch is to make a very sudden, brief, unintentional movement. Your eye muscles might start to twitch when you're extremely tired.

Back in the 12th century, instead of using the word twitch, you would've used to-twic-chen, which was defined as "pulling apart with a quick jerk." It stemmed from the Old English twiccian, "to pluck, gather, or catch hold of." Today, we use twitch as a noun too, to mean the jerky spasm itself: "She tried not to laugh, but he could see a twitch in her lip."

Definitions of twitch
1

v make an uncontrolled, short, jerky motion

“his face is twitching
Synonyms:
jerk
jerk
move with abrupt, seemingly uncontrolled motions
Types:
fibrillate
make fine, irregular, rapid twitching movements
Type of:
move involuntarily, move reflexively
move in an uncontrolled manner

v move with abrupt, seemingly uncontrolled motions

Synonyms:
jerk
jerk
make an uncontrolled, short, jerky motion
Type of:
move
move so as to change position, perform a nontranslational motion

v move or pull with a sudden motion

Types:
skitter
twitch the hook of a fishing line through or along the surface of water
Type of:
draw, force, pull
cause to move by pulling

v toss with a sharp movement so as to cause to turn over in the air

Synonyms:
flip
Type of:
move
move so as to change position, perform a nontranslational motion

v squeeze tightly between the fingers

Synonyms:
nip, pinch, squeeze, tweet, twinge
Types:
goose
pinch in the buttocks
tweak
pinch or squeeze sharply
Type of:
grip
hold fast or firmly

n a sudden muscle spasm; especially one caused by a nervous condition

Synonyms:
twitching, vellication
Types:
show 6 types...
hide 6 types...
tic
a local and habitual twitching especially in the face
blepharism
condition in which a person blinks continuously
fibrillation
muscular twitching involving individual muscle fibers acting without coordination
fasciculation
muscular twitching of contiguous groups of muscle fibers
atrial fibrillation
fibrillation of the muscles of the atria of the heart
ventricular fibrillation
fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest
Type of:
cramp, muscle spasm, spasm
a painful and involuntary muscular contraction

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