Pollex

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The thumb; the first, or preaxial, digit of the forelimb, corresponding to the hallux in the hind limb. In birds, the pollex is the joint which bears the alula or bastard wing.

    "The Simiidae have a man-like appearance. They possess neither tails nor bestial cheek pouches. Their arms are longer than their legs, and they have opposable pollexes and a broad sternum."

  2. 2
    the thick short innermost digit of the forelimb wordnet

Synonyms

All synonyms
digitfingerindexthumbthumbthumby

Example

More examples

"The Simiidae have a man-like appearance. They possess neither tails nor bestial cheek pouches. Their arms are longer than their legs, and they have opposable pollexes and a broad sternum."

Etymology

Borrowed from Latin pollex.

Related phrases

bastard wing

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.