Definition of bipedal adjective from the Oxford Advanced Learner's Dictionary

 

bipedal

 adjective
adjective
BrE BrE//ˌbaɪˈpiːdl//
 
; NAmE NAmE//ˌbaɪˈpiːdl//
 
, also NAmE//ˌbaɪˈpedl//
 
(specialist)
 
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(of animals) using only two legs for walking Word Origin early 17th cent.: from Latin bipes, biped- (from bi- ‘having two’ + pes, ped- ‘foot’) + -al.
See the Oxford Advanced American Dictionary entry: bipedal