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bipedalism

[bahy-ped-l-iz-uh m]
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noun
  1. the condition of being two-footed or of using two feet for standing and walking.
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Also bi·pe·dal·i·ty [bahy-pi-dal-i-tee] /ˌbaɪ pɪˈdæl ɪ ti/.

Origin of bipedalism

First recorded in 1905–10; bipedal + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for bipedalism

n.

1897; see bipedal + -ism.

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Online Etymology Dictionary, © 2010 Douglas Harper