pollex

Hand's gripping digit

The pollex is the thumb—the first digit of the hand.

The term belongs to anatomy and zoology, where it describes the innermost digit of a forelimb in primates and other vertebrates.

The plural is pollices.

The pollex is opposable in humans and most primates.

anatomy

thumb

Short opposable digit

metacarpal · nail · knuckle · joint · bone · muscle · tendon · ligament · carpal · sesamoid

primate

opposable

Able to be resisted

evolution · adaptation · prehensile · bipedalism · ape · human · gorilla · chimpanzee · hallux · tetrapod

fingers

index

Alphabetical guide to contents

pinkie · digit · fingertip · annular · hand · palm

grip

grasp

Seize or understand

  • pinchSqueeze with fingertips
  • claspSecuring device that clicks
  • holdMaintain in grasp

squeeze · clench · opposition · prehension · manipulation · pincer · clutch · secure · grasping · dexterity

Opposites
digit type

pollexfinger

Hand's grasping extension

pinky · little finger · minimus · phalanges

anatomical extremity

pollexhallux

Foot's innermost digit

big toe · toe

Phrases
Family

poll, polling

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Used worldwide · Timeless · Concrete · Rated G