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

The infection took longer in orbit because microgravity is an unfamiliar stressor to which both microbes must adapt, the researchers suggest. —K. R. Callaway, Scientific American, 15 Mar. 2026

Maintaining orientation in microgravity is one of the biggest challenges in satellite servicing. —Neetika Walter, Interesting Engineering, 12 Mar. 2026

Other experiments will investigate the effects of microgravity on the human musculoskeletal system during spaceflight. —Mike Wall, Space.com, 10 Mar. 2026

There, in microgravity, the miniature labs grow molecular crystals that are purer than those produced in Earth’s gravity for use in pharmaceuticals. —Roger Vincent, Los Angeles Times, 4 Mar. 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