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bipedal

[bahy-ped-l, -pi-dl, bahy-ped-l]
adjective
  1. biped.
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Origin of bipedal

1600–10; bi-1 + pedal (adj.)
Related formsbi·ped·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for bipedally

bipedal

adj.

c.1600, from biped + -al (1). Classical Latin bipedalis meant "two feet long or thick."

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Online Etymology Dictionary, © 2010 Douglas Harper