- tetrapod⇄adj. having four limbs; quadruped.
Ex. tetrapod mammals. - tetrapod⇄noun 1a. an animal having four limbs; quadruped.
b. any one of a superclass of vertebrates including amphibians, reptiles, birds, and mammals but not fishes.
2. a very large concrete block with four legs that can be interlocked with another - tetrapod⇄tetrapod, noun, adjective.