zero gravity

American  

Also zero-g,

noun

Physics.

1. the condition in which the apparent effect of gravity is zero, as in the case of a body in free fall or in orbit.

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zero gravity British  

noun

1. the state or condition of weightlessness

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zero gravity Scientific  

1. The condition of real or apparent weightlessness occurring when any gravitational forces acting on a body meet with no resistance so the body is allowed to accelerate freely. Bodies in free fall (including trajectories like orbits) experience zero gravity; bodies at rest on the Earth's surface do not, since they are subject to the counterforce of the surface supporting them.

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Etymology

Origin of zero gravity

First recorded in 1950–55

Example Sentences

See Examples For:

zero gravity

This space architecture lab is trying to build the future in zero gravity.

From The Wall Street Journal ● May 8, 2026

"It's really fun to be floating around" in zero gravity, he added.

From Barron's ● Apr. 3, 2026

This device continuously rotates cells to mimic the disorienting effects of zero gravity.

From Science Daily ● Mar. 29, 2026

Exercising in zero gravity means your body doesn't need much time to recover from the daily squats and deadlifts, Mr Wilmore explained.

From BBC ● May 30, 2025

Who could ever forget her amazingly gymnastic tumble through zero gravity on her space walk in that episode about the space station?

From "Dog Squad" by Chris Grabenstein