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dumbbell

dumbbell


dumb·bell    Audio Help   (dŭm'běl')   

n.  

  1. A weight consisting of a short bar with a metal ball or disk at each end that is lifted for muscular development and exercise.

  2. Slang A stupid person; a dolt.


[From an apparatus similar to that used in ringing a church bell, but without the bell, used for practice or physical exercise.]
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The American Heritage® Dictionary of the English Language, Fourth Edition
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