mi·​cro·​grav·​i·​ty ˌmī-krə-ˈgra-və-tē How to pronounce microgravity (audio)
: 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 Spend a Day in Space The Astronaut Training Experience at Kennedy Space Center in Florida lets kids experience the sensation of microgravity and walking on Mars — all while tackling real-world challenges using NASA science. Sonal Dutt, Peoplemag, 18 May 2024 Shorter periods of exposure to space radiation and microgravity could help mitigate its effects on the human body. Passant Rabie / Gizmodo, Quartz, 8 May 2024 Studying stem cells and cancer in low Earth orbit Turns out, the microgravity of low Earth orbit allows scientists to study cancer growth at an accelerated clip. Meghana Keshavan, STAT, 6 May 2024 By the end of Rothe's lesson on microgravity, Murali's students were able to easily answer questions the MSOE student's fellow undergrads struggled with, Murali said. Claudia Levens, Journal Sentinel, 29 Jan. 2024 Her team landed on the concept of crystallizing drugs in microgravity. Grace Browne, WIRED, 27 Mar. 2024 Research in space medicine has revealed various ways microgravity and other factors affect the human body during space missions. Fox News, 15 Mar. 2024 Why are Astronauts Getting Headaches? Van Oosterhout suspects that the part of the brain responsible for balance and posture receives different signals in microgravity. Paul Smaglik, Discover Magazine, 14 Mar. 2024 These include studying the effects of microgravity and UV radiation on plants, using stem cells to create models to study degenerative disease and testing whether wearing pressure cuffs on the legs could prevent fluid shifts and reduce health problems in astronauts. Russell Lewis, NPR, 4 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'microgravity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1974, in the meaning defined above

Time Traveler
The first known use of microgravity was in 1974

Dictionary Entries Near microgravity

Cite this Entry

“Microgravity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microgravity. Accessed 28 May. 2024.

Kids Definition


mi·​cro·​grav·​i·​ty ˌmī-krə-ˈgrav-ət-ē How to pronounce microgravity (audio)
: the condition of being weightless or of the near absence of gravity

More from Merriam-Webster on microgravity

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