TETRAPOD
- a four-footed animal [n TETRAPODS]
- any vertebrate having four limbs or, as in the snake and whale, having had four-limbed ancestors
- object, as a caltrop, having four projections radiating from one central node, with each forming an angle of 120┬░ with any other, so that no matter how the object is placed on a relatively flat surface, three of the projections will form a supporting tri
- having four limbs or descended from four-limbed ancestors