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 (bī-pĕd′l) or bi·ped (bī′pĕd′)
1. Having two feet; two-footed.
2. Walking on two feet.

bi·ped′al·ism (-pĕd′l-ĭz′əm), bi′pe·dal′i·ty (-pə-dăl′ĭ-tē) n.
bi·ped′al·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(baɪˈpɛdəˌlɪzəm; baɪˈpiːdəˌlɪzəm)
the condition or state of having two feet
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(baɪˈpɛd lˌɪz əm)

also bi•pe•dal•i•ty

(ˌbaɪ pɪˈdæl ɪ ti)

the condition of being two-footed or of using two feet for locomotion.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.bipedalism - the bodily attribute of being bipedalbipedalism - the bodily attribute of being bipedal; having two feet; "bipedalism made the human form of birth possible"
bodily property - an attribute of the body
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Ian Wallace, an evolutionary biologist at Harvard University and another symposium presenter, said that "upright walking is the defining characteristic of the human lineage.
Priscilla and the Sandman is a 32-page picture book with captivating illustrations and a story of a young girl named Priscilla that embarks on a magical journey to the land of dreams with her toy rabbit, and the Sandman, an upright walking, adorable cat.
I think it's just a matter of time before these exoskeletons become so very light where it takes 15 seconds to put it on and then you can go out and be upright walking with no assistance at all."
Humanoid robots have yet to master upright walking on two legs, like people do.
When back pain occurs painkillers, hot and cold therapy, movement, and physiotherapy can be beneficial.' Try: Relieve back pain with Nature's Best Devil's Claw supplement; PS13.95 for 60 tablets, PAIN: Childbirth EVOLUTION: Upright walking has made childbirth even riskier for humans than any other primate.
Summary: TEHRAN (FNA)- Australopithecus afarensis (the species of the well-known "Lucy" skeleton) was an upright walking species, but the question of whether it also spent much of its time in trees has been the subject of much debate, partly because a complete set of A.
Whereas Lucy was designed for upright walking -- a crucial step in human evolution -- her newly identified neighbour appears to have been a bit of a swinger.
While upright body position is evidenced in other primates such as chimpanzees, humans are the only ones who are exclusively bipedal and whose bodies have a number of special adaptations to upright walking that represent profound changes in anatomy.
A brief functional analysis was conducted in an analogue setting to identify the maintaining variables for upright walking in a woman with developmental disabilities supported in an outpatient setting.
Upright walking evolved in the ancestors of all apes, including humans, as a means of foraging for food in the small branches of the tropical forests and these techniques were later used by human ancestors to allow them to adapt to walking on two feet on the ground."
Topics discussed include fossil aging; where and when humans emerged; which came first, upright walking or intelligence; whether or not we have been "murderous apes" from the beginning of our history; when humans first began to speak; and whether we are the logical conclusion of a long evolutionary journey or an "evolutionary accident." Originally published in Spanish as La especie elegida (1998, Ediciones Temas de Hoy, Ltd.), the Blackwell edition makes the work available in English.