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 several months after their arrival, the astronauts will conduct scientific experiments meant for microgravity and maintain space station operations, which potentially includes spacewalks. — Eric Lagatta, USA Today, 1 Sep. 2026 The facility creates short periods of microgravity through a specialized drop tower system. — Aamir Khollam, Interesting Engineering, 27 Aug. 2026 The upcoming edition of the adults-only event at Orlando Science Center will feature a mishmash of M words, from microgravity to mythbusting to music from the ’90s. — Dewayne Bevil, The Orlando Sentinel, 19 Aug. 2026 Similar studies of astronaut health in microgravity have also yielded insights for people back on Earth. — Samantha Mathewson, Space.com, 18 Aug. 2026 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

Rhymes for microgravity

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Browse Nearby Words

micrographics
microgravity
microgreen
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Cite this Entry

“Microgravity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microgravity. Accessed 2 Sep. 2026.

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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

Britannica.com: Encyclopedia article about microgravity

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