n. An animal, being or construction that goes about on two feet (or two legs).
the GNU version of the Collaborative International Dictionary of English
n. A two-footed animal, as man.
adj. Having two feet; two-footed.
The Century Dictionary and Cyclopedia
Having two feet.
In herpetology, having hind limbs only.
n. An animal having two feet, as man.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. having two feet
n. an animal with two feet
Word Usage
"It is found in the Endymion (a circular walled plain) in company with a small kind of reindeer, the elk, the moose, and the horned bear, and is described as the biped beaver."