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

Humans have yet to visit Mars, a transit estimated to take between six and 12 months, that will expose astronauts to other concerns, such as radiation and the effects of microgravity. —Madison Dapcevich, Discover Magazine, 25 Apr. 2025

Often, these videos include acrobatic backflips or show the novelty of eating and drinking in microgravity. —ArsTechnica, 22 Apr. 2025

For example, microgravity conditions aboard the International Space Station facilitated the growth of higher-quality protein crystals, enhancing drug design for diseases such as Duchenne muscular dystrophy. —Reema Khan, Forbes.com, 18 Apr. 2025

Each spaceflight lasts about 11 minutes from liftoff to capsule touchdown, allowing passengers to experience a few minutes of weightlessness while in microgravity. —Eric Lagatta, USA Today, 12 Apr. 2025

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