a. [ L. quadrupes, -pedis; quattuor four + pes, pedis, a foot: cf. F. quadrupède. See Quadrate, and Foot. ] Having four feet. [ 1913 Webster ]
n. (Zool.) An animal having four feet, as most mammals and reptiles; -- often restricted to the mammals. [ 1913 Webster ]
a. (Zool.) Having four feet; of or pertaining to a quadruped. [ 1913 Webster ]