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

One video he shared about how to change a camera lens in zero gravity was watched more than 25 million times.

From BBC

We learned that zero gravity is harsh on the human body, which has been shaped by natural selection to live on the land surface of this particular rocky planet, in this particular orbit around this particular star.

From Slate

He trained in how to operate under conditions of what we then called weightlessness, or zero gravity—when a person floats around in the air.

From Literature

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

The performer sang “What a Wonderful World” while in zero gravity, kissed the ground upon landing and said the launch made her feel “super connected to love.”

From Los Angeles Times