[ thee-nahr ]
/ ˈθi nɑr /

noun Anatomy.

the fleshy mass of the outer side of the palm of the hand.
the fleshy prominence or ball of muscle at the base of the thumb.


of or relating to the thenar.

Origin of thenar

1665–75; < New Latin < Greek thénar palm of hand or sole of foot Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for thenar

  • In the ox and the horse we meet with no vestige of the muscles of the thenar or hypothenar eminences.

British Dictionary definitions for thenar

/ (ˈθiːnɑː) anatomy /


the palm of the hand
the fleshy area of the palm at the base of the thumb


of or relating to the palm or the region at the base of the thumb

Word Origin for thenar

C17: via New Latin from Greek; related to Old High German tenar palm of the hand
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for thenar

[ thēnär′, -nər ]


The fleshy mass on the palm at the base of the thumb.thenar prominence


Of or relating to the thenar.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.