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

This is a significant issue for a project intended for deep-space mission launches, microgravity research, and space manufacturing – only for it to be found unsuitable for any of those goals, largely due to the presence of the astronauts themselves. —New Atlas, 15 Feb. 2026

While standard chemical leaching (without microbes) performed worse in microgravity than on Earth, the microbes maintained consistent extraction levels regardless of gravity. —Mrigakshi Dixit, Interesting Engineering, 12 Feb. 2026

In microgravity, that balance changes. —Rachael Seidler, The Conversation, 11 Feb. 2026

Scientists conduct a variety of experiments, such as searching for dark matter and exploring the effects of space radiation and microgravity. —Rodney Ho, AJC.com, 11 Feb. 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