Opposable synonyms

You owe the Oracle a can opener that doesn't require an opposable thumb.

Hind-feet rather long and slender, with a well-developed opposable and nailless first toe;: second and third digits united, with sharp, compressed curved claws; the fourth and fifth free, with small flat nails.

They differ in certain respects, as in the proportion of the limbs, in the bony development of the eyebrow ridges, and in the opposable great toe, which fits the foot to be a climbing and grasping organ.

The hand of the gorilla corresponds essentially as to bones and muscles with that of man, but is clumsier and heavier; its thumb is " opposable " like a human thumb, that is, it can easily meet with its extremity the extremities of the other fingers, thus possessing a character which does much to make the human hand so admirable an instrument; but the gorilla's thumb is proportionately shorter than man's.