Search Result for "bipedalism": 
Wordnet 3.0

NOUN (1)

1. the bodily attribute of being bipedal; having two feet;
- Example: "bipedalism made the human form of birth possible"



WordNet (r) 3.0 (2006):

bipedalism
    n 1: the bodily attribute of being bipedal; having two feet;
         "bipedalism made the human form of birth possible"