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 upcoming edition of the adults-only event at Orlando Science Center will feature a mishmash of M words, from microgravity to mythbusting to music from the ’90s. — Dewayne Bevil, The Orlando Sentinel, 19 Aug. 2026

Similar studies of astronaut health in microgravity have also yielded insights for people back on Earth. — Samantha Mathewson, Space.com, 18 Aug. 2026

Increasing the speed to Mars helps reduce the time astronauts are exposed to space’s microgravity and cosmic radiation. — Encyclopedia Britannica, 11 Aug. 2026

The latter could allow for in-space manufacturing markets that take advantage of microgravity and the vacuum of space. — Euihyeon Choi, Fortune, 5 Aug. 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