microgravity

noun

mi·​cro·​grav·​i·​ty ˌmī-krə-ˈgra-və-tē 

: 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

And the work continues off planet as well; astronauts living on the ISS exercise hard every day to stave off the bone loss and muscle wasting that long stays in microgravity induce. —Mike Wall, Space.com, 3 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

Radiation exposure on processors, thermal management of electronics in microgravity and the long-term maintenance of satellite constellations remain unresolved engineering challenges. —Nicola Sfondrini, Forbes.com, 2 Sep. 2025

Viral Among the experiments brought aboard was MVP Cell-07, a study of vascularized liver tissue constructs in microgravity. —Joe Edwards, MSNBC Newsweek, 28 Aug. 2025

Word History

First Known Use

1974, in the meaning defined above

Rhymes for microgravity

• intracavity
• supergravity
• cavity
• gravity
• concavity
• depravity

Kids Definition

microgravity

noun

mi·​cro·​grav·​i·​ty ˌmī-krə-ˈgrav-ət-ē 

: the condition of being weightless or of the near absence of gravity