from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having four feet, legs, or leglike appendages.
- n. A vertebrate animal with four feet, legs, or leglike appendages.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any vertebrate with four limbs.
- n. Any vertebrate (such as birds or snakes) that have evolved from early tetrapods; especially all members of the superclass Tetrapoda
- n. Concrete structures with 'arms' used to arrest wave energy along the shore in sea defence projects.
- adj. Having four limbs or feet
from the GNU version of the Collaborative International Dictionary of English
- n. An insect characterized by having but four perfect legs, as certain of the butterflies.
from The Century Dictionary and Cyclopedia
- Four-footed; quadruped; specifically, having only four perfect legs, as certain butterflies; of or pertaining to the Tetrapoda.
- n. A four-footed animal; a quadruped; specifically, a member of the Tetrapoda.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a vertebrate animal having four feet or legs or leglike appendages
From tetra- ("four") and -pod, from podos ("foot"). (Wiktionary)