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prepollex

[pri-pol-eks]
noun, plural pre·pol·li·ces [pri-pol-uh-seez] /prɪˈpɒl əˌsiz/.
  1. a rudimentary additional digit on the preaxial side of the thumb of certain amphibians and mammals.
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Origin of prepollex

From New Latin, dating back to 1885–90; see origin at pre-, pollex
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for prepollex

Historical Examples of prepollex

  • Breeding males have dark brown nuptial excrescences on the prepollex.

    Neotropical Hylid Frogs, Genus Smilisca

    William E. Duellman

  • The digits (and metacarpals) are considered by Ritland to be 1-4, in addition to the prepollex, rather than 2-5.