bipedalism

noun

form of terrestrial locomotion where an organism moves by means of its two limbs or legs

Wiktionary

noun

Etymology: Etymology tree English biped Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English bipedal Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Indo-European *-mos Proto-Indo-European *-mós Ancient Greek -μός (-mós) Ancient Greek -ισμός (-ismós)der. English -ism English bipedalism From bipedal + -ism.

The habit of standing and walking on two feet; the state of being bipedal