thumbscrew /ˈθʌmˌskruː/ noun plural thumbscrews
plural thumbscrews
Learner's definition of THUMBSCREW
[count]
1
: a device used in the past to torture people by crushing their thumbs拇指夹(旧时刑具) —
sometimes used figuratively有时用作比喻 2
: a type of screw with a flat-sided head that can be held and turned with your thumb and fingers翼形螺钉