adjective
opposable
adjective
1
Capable of being placed against or facing another part, especially describing a thumb that can touch the other fingers.
"The opposable thumb is one reason humans and other primates can grip tools so precisely."
How to Use Opposable
Learner’s notesIn plain EnglishMostly used for thumbs that can be turned to press against the fingers, allowing a firm grip.
Common pairings
opposable thumb
Word Forms
more opposable comparative, most opposable superlative
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The _____ thumb is one reason humans and other primates can grip tools so precisely.
Etymology
From oppose plus the suffix "-able."