from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A small, rubber-headed hammer used in examination or diagnosis by percussion.

from The Century Dictionary and Cyclopedia

  • n. That which strikes in percussion; a percussion-hammer.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (medicine) a small hammer with a rubber head used in percussive examinations of the chest and in testing reflexes


From Greek plēxis, a blow, from plēssein, plēg-, to strike.
(American Heritage® Dictionary of the English Language, Fourth Edition)


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  • That weird little rubber-headed hammer the doctor uses to test your reflexes.

    February 26, 2007