Simple Definition of thumbscrew
: a device used in the past to torture people by crushing their thumbs
: a type of screw with a flat-sided head that can be held and turned with your thumb and fingers
Full Definition of thumbscrew
1 : an instrument of torture for compressing the thumb by a screw
2 : a screw having a flat-sided or knurled head so that it may be turned by the thumb and index finger
First Known Use of thumbscrew
Rhymes with thumbscrew
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Learn More about thumbscrew
Britannica.com: Encyclopedia article about "thumbscrew"
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