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

Additional research is needed to see how the approach works in a vacuum or microgravity, two inescapable hurdles to living on the moon. — Andrew Paul, Popular Science, 10 Nov. 2026

The experiment used microgravity to produce and manipulate a Bose–Einstein condensate, a state in which atoms behave collectively as a single quantum wave. — Atharva Gosavi, Interesting Engineering, 7 Nov. 2026

The robots are designed to assist the astronauts onboard with testing new technologies in microgravity and helping mission team members back on Earth to better observe inside the station. — Chelsea Gohd, Space.com, 3 Nov. 2026

Astronauts age faster in space because microgravity and radiation exposure negatively affect multiple body systems. — ABC News, 13 Oct. 2026

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