Jisho

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Noun, Noun which may take the genitive case particle 'no'
1. bipedal walking; walking on two legs
Wikipedia definition
2. BipedalismBipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs, or legs. An animal or machine that usually moves in a bipedal manner is known as a biped, meaning "two feet" (from the Latin bi for "two" and ped for "foot"). Types of bipedal movement include walking, running, or hopping, on two appendages. Relatively few modern species are habitual bipeds whose normal method of locomotion is two-legged.
Read “Bipedalism” on English Wikipedia
Read “二足歩行” on Japanese Wikipedia
Read “Bipedalism” on DBpedia

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