tetrapods

/T EH0 T R AH0 P AA0 D Z/
noun
  1. 1

    Any vertebrate with four limbs.

  2. 2

    Any vertebrate (such as birds or snakes) that has evolved from early tetrapods; especially any member of the superclass Tetrapoda

  3. 3

    A concrete structure with arms, used to arrest wave energy along the shore in sea defence projects.

Source: https://en.wiktionary.org/wiki/tetrapod, https://en.wiktionary.org/wiki/tetrapods