1) Biped 2) Twolegged 1) Having two feet 2) Having two feet, not four 3) Two-footed 
• (n.) Pertaining to a biped. • (n.) Having two feet; biped.
<biology> Capable of locomotion on two feet. ... (19 Jan 1998) ... 
Bip'e·dal adjective [ Latin bipedalis : confer French bipédal . See Biped , noun ] 1. Having two feet; biped. 2. Pertaining to a biped. 
Type: Term Pronunciation: bip′ĕ-dal Definitions: 1. Relating to a biped. 2. Capable of locomotion on two feet; iguanas and some other varieties of lizard have this capability.
standing on two rather than four legs
with two legs
adj. Describes an animal that walks on two legs.
adj. Describes an animal that walks on two legs.
[adj] - having two feet
bipedal, bipedaling, bipedalism, bipedality 1. Having two feet, two-footed, biped; specifically designating a reptile that uses its two hind feet for walking or running; also denoting this method of movement. 2. Capable of locomotion on two feet; e.g., an iguana and some other lizards have this capability. 3. Sometimes used humorously as a referenc...
Walking (or running) on two legs.
biped adjective having two feet