Definition of opposable in English:

opposable

Line breaks: op|pos¦able
Pronunciation: /əˈpəʊzəb(ə)l
 
/

adjective

Zoology
  • (Of the thumb of a primate) capable of facing and touching the other digits on the same hand.
    More example sentences
    • Digits 1 and 2 on the forefeet are opposable to digits 3-5, and the hindfoot has a well-developed hallux.
    • The first 2 digits of their forefeet are opposable to the other three in the more arboreal species.
    • A panda with a fully opposable thumb that is lacking in its nearest relatives is hard to explain via evolution.

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