pollex

/ˈpɑlɛks/
noun
  1. The thumb, especially in anatomical or scientific contexts.
    • In anatomy class, we learned that the pollex has only two phalanges instead of three.
    • The human pollex is opposable, allowing us to grip objects tightly.
    • A broken pollex can make everyday tasks like writing or holding a cup very difficult.
Synonyms
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