'Thumbscrew' definitions:

Definition of 'thumbscrew'

noun

Instrument of torture that crushes the thumb

noun

Screw designed to be turned with the thumb and fingers

Definition of 'Thumbscrew'

From: GCIDE

Thumbscrew \Thumb"screw`\, n.
1. A screw having a flat-sided or knurled head, so that it may be turned by the thumb and forefinger. [1913 Webster]
2. An old instrument of torture for compressing the thumb by a screw; a thumbkin. [1913 Webster]

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