mi·​cro·​grav·​i·​ty | \-ˈgra-və-tē \

Definition of microgravity 

: a condition in space in which only minuscule forces are experienced : virtual absence of gravity broadly : a condition of weightlessness

Examples of microgravity in a Sentence

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In a near vacuum, some metals fuse together, while that same vacuum can vaporize the kinds of lubricants found inside conventional weapons. Weapons-makers must account for microgravity when considering things like recoil. John Wenz, Popular Mechanics, "The Pentagon's Far-Out 1950s Dreams of Space Guns," 10 Nov. 2015 His year in space will show the effects of microgravity on the human body over a long period, helping scientists better understand some of the potential issues with a Mars mission. John Wenz, Popular Mechanics, "Scott Kelly's Year-Long ISS Mission Has Officially Begun," 27 Mar. 2015 Humanity now has only a toehold in space, and microgravity science is so new that the equipment to do it is just now being developed and tested. Joe Pappalardo, Popular Mechanics, "How Space Crystals Could Lead To New Cancer Drugs," 5 June 2018 The patterns should be sensitive to tiny changes in the microgravity of space, which could make them good navigational tools. Sophia Chen, WIRED, "The Quest to Make Super Cold Quantum Blobs in Space," 25 June 2018 In the new study, the researchers dropped the full experimental set up for photocatalysis down a 120m drop tower, creating an environment similar to microgravity. Charles W. Dunnill, Scientific American, "Method of Making Oxygen from Water in Zero Gravity Raises Hope for Long-Distance Space Travel," 10 July 2018 On station, Cimon and Gerst have three to-dos together, the first being an experiment about how crystals form in microgravity. Sarah Scoles, WIRED, "The Floating Robot With an IBM Brain Is Headed to Space," 28 June 2018 On board the vehicle are shipments of food and water for the six astronauts living on the ISS, as well as new science experiments and technologies to be tested out in microgravity. Loren Grush, The Verge, "SpaceX is sending an AI robot ‘crew member’ to join the astronauts on the space station," 28 June 2018 In the space station’s microgravity environment, Thompson said, the condensates float to give scientists up to 10 seconds to study them. Denise Chow /, NBC News, "Space station experiment will create the coldest spot in the universe," 22 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'microgravity.' 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 microgravity

1974, in the meaning defined above

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Last Updated

17 Oct 2018

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The first known use of microgravity was in 1974

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obstinately defiant of authority

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