mi·​cro·​grav·​i·​ty | \ ˌmī-krə-ˈgra-və-tē How to pronounce microgravity (audio) \

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

Recent Examples on the Web While much still needs to be investigated, one seeming difference are changes in the shapes and sizes of organoids that spent periods of time under microgravity conditions compared to controls. Gabriel A. Silva, Forbes, 27 Apr. 2021 The microgravity conditions of space remove these limitations. Karmela Padavic-callaghan, Scientific American, 19 Mar. 2021 The experiment will track how slime molds grow toward their food in microgravity—in this case, as le Blob devours different cereals. Max G. Levy, Wired, 9 Aug. 2021 There are hints—just hints—that microgravity and the other weird conditions inside the ISS can change gene expression in bacteria, the snapshot of the biochemical things the bugs are doing to survive. Adam Rogers, Wired, 5 Apr. 2021 After about a minute the engine shut off, leaving the spacecraft and the passengers suspended in microgravity as SpaceShipTwo rolled onto its belly and offered the passengers sweeping views of the Earth below and the inky black void above. Francesca Street, CNN, 6 Aug. 2021 The successful result prompted the researchers to ponder the next big challenge: a test drive in microgravity. Shi En Kim, Smithsonian Magazine, 28 July 2021 Viewers were naturally disappointed in a space race that results in just a few minutes of microgravity—even as others fretted nonsensically that billionaires are set to abandon the planet. Tim Fernholz, Quartz, 22 July 2021 At an altitude of approximately 50,000 feet, the spaceship will be released from the aircraft and enter its glide to the edges of space where those aboard can experience just a few minutes of microgravity, as well as novel views of earth and space. Catherine Thorbecke, ABC News, 10 July 2021

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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Time Traveler for microgravity

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The first known use of microgravity was in 1974

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Last Updated

15 Sep 2021

Cite this Entry

“Microgravity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microgravity. Accessed 23 Sep. 2021.

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More from Merriam-Webster on microgravity

Britannica English: Translation of microgravity for Arabic Speakers

Britannica.com: Encyclopedia article about microgravity


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