Is a thumb a finger?
No, The thumb contrasts with each of the other four by being the only digit that: Is opposable to the other four fingers. Has two phalanges rather than three. Has greater breadth in the distal phalanx than in the proximal phalanx
The thumb is a digit, but not technically a finger.
No. The thumb is the short, thick first digit of the human hand. A hand consists of four fingers and a thumb.
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