DictionarybipedTwo-footed walking
noun / adjective

biped

BYE-ped/ˈbaɪped/

An animal that walks on two feet, or having this way of walking.

The ostrich is a large biped that runs swiftly.

A single ostrich walking in side view, with one foot planted and the other stepping forward, clearly showing an animal moving on two feet.
Etymology

The pieces literally describe a “two-footed” creature. Latin also used the combined word as a plural noun for people; English applies it to animals that walk on two feet.

In context

Enhanced Public Domain55:31
one of the biped family who have essayed to make the world happier and brighter
1800s Philosophy: Mark Twain's Anti-Imperialist Writings (Audiobook)

More examples

  • Humans normally move as bipeds.
  • The fossil suggests that the dinosaur was a biped.
  • The exhibit compares biped movement with walking on four limbs.

Forms

biped · bipeds

bipedal adjective — Walking or standing on two feet.

Similar words

quadruped
An animal that walks on four feet.
bipedal
The more usual adjective describing movement on two feet.