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.
It's designed to loft a payload of up to 22 pounds (10 kilograms) above the Kármán line for up to three minutes of microgravity, before returning to a runway landing. ArsTechnica, 23 May 2025 Part of the issue is probably microgravity, but another aspect may be the much smaller microbial space travelers that leave Earth with humans (and the ones that don’t). Popular Science Team, Popular Science, 21 May 2025 At this point, the women were permitted to safely unstrap from their seats to experience a few minutes of microgravity and gaze out the capsule's large windows to take in a stunning view of Earth. Anna Kaufman, USA Today, 14 Apr. 2025 One of those experiments involves testing material for wound dressing in microgravity; Nguyễn has said that the results of this experiment could have applications for women's health in space. Monisha Ravisetti, Space.com, 14 Apr. 2025 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

Browse Nearby Words

Cite this Entry

“Microgravity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microgravity. Accessed 9 Jun. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!