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thumbscrew

 - 2 dictionary results

thumb⋅screw

[thuhm-skroo]
–noun
1. a screw, the head of which is so constructed that it may be turned easily with the thumb and a finger.
2. Often, thumbscrews. an old instrument of torture by which one or both thumbs were compressed.

Origin:
1705–15; thumb + screw
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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thumb·screw   (thŭm'skrōō')   
n.  
  1. A screw designed so that it can be turned with the thumb and fingers.

  2. An instrument of torture formerly used to compress the thumb.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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