adj. Having four feet whose first digits are opposable; applies to all non-human primates.
the GNU version of the Collaborative International Dictionary of English
adj. Having four hands; of or pertaining to the Quadrumana.
The Century Dictionary and Cyclopedia
Four-handed; having all four feet fitted for use as hands: said of mammals, as opossums, etc.; specifically, of or pertaining to the Quadrumana. Also quadrimanous.
Word Usage
"I.G. St. Hilaire is clearly in error in ascribing the invention of the term "quadrumanous" to"