tetrapod UK /ˈtɛ.tɹəˌpɒd/US /ˈtɛ.tɹəˌpɑd/noun 6adjective 1forms 1 noun6 •A type of vertebrate animal •Any vertebrate with four limbs. •Any member of the superclass Tetrapoda •Any vertebrate (such as birds or snakes) that has evolved from early tetrapods •Any item with four arms or four feet, such as a light stand, a gun mount, etc. •A concrete structure with arms, used to arrest wave energy along the shore in sea defence projects. adjective1 •Having four limbs or feet formstetrapods