
Tic
Involuntary Action
A tic is an involuntary movement or sound that a person cannot control.

Even during his presentation, his nervous tic appeared.
Not Persistent
Tics are usually temporary and could be caused by stress or tiredness.

Her eye tic only shows up when she's exhausted.
Medical Condition
Frequent or severe tics can be a sign of a medical condition like Tourette syndrome.

He was diagnosed with a condition that makes him have tics.
Compare with
ConvulsionFlutterJerkSpasmTremorTwitch
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension