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.
According to the statement, radiation and microgravity were likely the chief stressors on the HSPCs, which were made up of four sets sent on SpaceX commercial resupply missions to the orbiting complex aboard the company's Dragon spacecraft. Elizabeth Howell, Space.com, 17 Sep. 2025 The project's goal is to demonstrate a new way of minimizing boil-off of super-cold rocket propellant and controlling fuel tank pressure in microgravity. Stephen Clark, ArsTechnica, 15 Sep. 2025 However, that wasn’t the case in space, where microgravity and cosmic radiation had an influence on their well-being. Jacopo Prisco, CNN Money, 5 Sep. 2025 The device’s design is well-suited for microgravity, preventing issues like pooling liquids and soapy wastewater. Mrigakshi Dixit, Interesting Engineering, 2 Sep. 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

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Cite this Entry

“Microgravity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microgravity. Accessed 20 Sep. 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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