prepollex

[ pri-pol-eks ]
/ prɪˈpɒl ɛks /

noun, plural pre·pol·li·ces [pri-pol-uh-seez]. /prɪˈpɒl əˌsiz/.

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. 2020

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