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 latter could allow for in-space manufacturing markets that take advantage of microgravity and the vacuum of space. — Euihyeon Choi, Fortune, 5 Aug. 2026

Since 2000, the ISS has hosted international crews and has been the site of countless groundbreaking scientific experiments made possible by its microgravity environment. — Brett Tingley, Space.com, 4 Aug. 2026

In microgravity, where objects appear to be weightless, fluids drift upward toward the head, which can cause swelling, nasal congestion and changes in pressure around the mouth and throat. — Sundeep Venkatesan, The Conversation, 3 Aug. 2026

The platform is expected to help with both hypersonic development and microgravity research by exposing equipment to high-speed flight and low-gravity conditions in a single mission. — Sujita Sinha, Interesting Engineering, 29 July 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