A strong, tight coat so made as to prevent the use of the arms: used to restrain criminals and the violently insane.

用以拘束罪犯或狂暴精神病患之紧身衣。

Anything that restrains freedom of action.

任何妨碍自由行动之物；束缚；拘束。

Same as straightjacket.

亦可作 straightjacket。