[ bahy-ped-l-iz-uh m ]
/ baɪˈpɛd lˌɪz əm /
the condition of being two-footed or of using two feet for standing and walking.
Also bi·pe·dal·i·ty [bahy-pi-dal-i-tee] /ˌbaɪ pɪˈdæl ɪ ti/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin and History for bipedalism
Online Etymology Dictionary, © 2010 Douglas Harper