microgravity

noun

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
For instance, astronauts aboard the International Space Station (ISS) experience microgravity, where the sensation of weightlessness is a result of free-falling around Earth. William Mullane, USA TODAY, 10 Jan. 2025 These scientific experiments will include research in microgravity, which is the near-weightless environment of space. Zhenbo Wang, Discover Magazine, 31 Dec. 2024 Consensus formed around trying to establish a presence in Earth orbit — a space station where astronauts could stay for longer periods and where researchers could learn about microgravity and its effects on the human body. Denise Chow, NBC News, 30 Dec. 2024 Here, the team is growing tomato plants to see how spaceflight and microgravity impact the plants' immune systems and production. Gord Magill, Newsweek, 19 Dec. 2024 See all Example Sentences for microgravity 

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 18 Jan. 2025.

Kids Definition

microgravity

noun
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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