Definition of opposable
- the opposable human thumb
Humans have an opposable thumb.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'opposable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: able to be placed against one or more of the other fingers or toes on the same hand or foot
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subject to rapid or unexpected change
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