• synonyms


noun, plural pol·li·ces [pol-uh-seez] /ˈpɒl əˌsiz/.
  1. the innermost digit of the forelimb; thumb.
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Origin of pollex

Borrowed into English from Latin around 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pollex

Historical Examples

  • Pollex: a thumb: the stout fixed spur at inside of tip of tibia.

    Explanation of Terms Used in Entomology

    John. B. Smith

  • Pollex, a Thumbe breadth; called otherwise Vncia, an ynch, 3.

  • I am Macer, the son of that Macer who was neighbor of the gladiator Pollex,—'


    William Ware

  • In C the distal phalanges of the pollex and second digit have been omitted.

    The Vertebrate Skeleton

    Sidney H. Reynolds

  • There are generally five digits, but sometimes the pollex is absent.

    The Vertebrate Skeleton

    Sidney H. Reynolds

British Dictionary definitions for pollex


noun plural -lices (-lɪˌsiːz)
  1. the first digit of the forelimb of amphibians, reptiles, birds, and mammals, such as the thumb of man and other primates
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Derived Formspollical (ˈpɒlɪkəl), adjective

Word Origin

C19: from Latin: thumb, big toe
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

pollex in Medicine


n. pl. pol•li•ces (pŏlĭ-sēz′)
  1. The thumb.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.