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pollex

[pol-eks] /ˈpɒl ɛks/
noun, plural pollices
[pol-uh-seez] /ˈpɒl əˌsiz/ (Show IPA)
1.
the innermost digit of the forelimb; thumb.
Origin
1825-1835
1825-35; < Latin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for pollex

pollex

/ˈpɒlɛks/
noun (pl) -lices (-lɪˌsiːz)
1.
the first digit of the forelimb of amphibians, reptiles, birds, and mammals, such as the thumb of man and other primates
Derived Forms
pollical (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
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pollex in Medicine

pollex pol·lex (pŏl'ěks')
n. pl. pol·li·ces (pŏl'ĭ-sēz')
The thumb.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for pollex

short, thick first digit of the human hand and of the lower-primate hand and foot. It differs from other digits in having only two phalanges (tubular bones of the fingers and toes). The thumb also differs in having much freedom of movement and being opposable to tips of other digits. The corresponding first digit (most medial digit) in other vertebrates is also called the thumb, especially if it has some manipulative or special ability (e.g., in the raccoon and the bat)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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