bi·​ped·​al·​ism | \ (ˌ)bī-ˈpe-dᵊl-ˌi-zəm How to pronounce bipedalism (audio) \

Definition of bipedalism

: the condition of having two feet or of using only two feet for locomotion

Examples of bipedalism in a Sentence

Recent Examples on the Web

Evolution gave human ancestors big brains and bipedalism, among other attributes that our species has retained to this day. NBC News, "This robotic tail gives humans key abilities that evolution took away," 12 Aug. 2019 One of them is a project to investigate the origins of bipedalism. Quanta Magazine, "Doudna’s Confidence in CRISPR’s Research Potential Burns Bright," 27 Feb. 2019 The point where the spinal cord had joined the skull was too far forward for a knuckle walker, indicating bipedalism. Quanta Magazine, "How Humans Evolved Supersize Brains," 10 Nov. 2015 One of the key traits that separates hominins from apes is bipedalism, or walking upright on two legs, freeing the arms to throw spears, pick berries or carry children. Jason Daley, Smithsonian, "Ancient Toddler Was at Home on the Ground and in the Trees," 5 July 2018 But new fossil records contain footprints displaying clear signs of bipedalism, according to the scientists who studied them. David Grossman, Popular Mechanics, "New Study: Human Ancestors Walked on Two Legs at Least 3.6 Million Years Ago," 24 Apr. 2018 Mercier, who works at a French research institute in Lyon, and Sperber, now based at the Central European University, in Budapest, point out that reason is an evolved trait, like bipedalism or three-color vision. Elizabeth Kolbert, The New Yorker, "Why Facts Don’t Change Our Minds," 27 Feb. 2017 The origin of human bipedalism has long been a hot topic among paleoanthropologists. Brian Switek, WIRED, "Bipedalism: From the ground-up or trees-down?," 14 Aug. 2009 Other research during this dinosaur renaissance, looking at the inflexibility of its hand and wrist, revealed that Iguanodon spent most of its time with four limbs on the ground, but was capable of some bipedalism. Gemma Tarlach, Discover Magazine, "When Dinosaurs Went Bad," 10 Apr. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bipedalism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bipedalism

1847, in the meaning defined above

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19 Aug 2019

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