- the innermost digit of the forelimb; thumb.
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
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.The Way To Geometry
I am Macer, the son of that Macer who was neighbor of the gladiator Pollex,—'Aurelian
In C the distal phalanges of the pollex and second digit have been omitted.
There are generally five digits, but sometimes the pollex is absent.
- the first digit of the forelimb of amphibians, reptiles, birds, and mammals, such as the thumb of man and other primates
C19: from Latin: thumb, big toe
- The thumb.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.