tetrapod noun & adjective. ['tɛtrǝpɒd] E19.
[mod. Latin tetrapodus from Greek tetrapod-, tetrapous four-footed, formed as TETRA- + pod-, pous foot.]
A. noun.
1. A four-footed animal; spec. in Zoology, a member of the group Tetrapoda, which includes all vertebrates higher than fishes (i.e. amphibians, reptiles, birds, and mammals). E19.

2. An object with four legs or supports; spec. a spherical block of concrete with four tetrahedrally arranged conical projections, placed in the sea near a harbour etc. to break the force of strong waves. M20.
b. adjective. Having four feet or four limbs; spec. (Zoology) of or pertaining to the Tetrapoda. L19.

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