zero gravity

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.

zero gravity

noun

1. the state or condition of weightlessness

zero gravity

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.

Word History and Origins

Origin of zero gravity¹

First recorded in 1950–55

Example Sentences

Greason started out at Intel but felt the zero-gravity pull of the rocket macro-process in which he now holds 22 patents.

From The Daily Beast

At zero-gravity, where physical exertion is slight, men can get along on small quantities of food.

From Project Gutenberg

Space resorts established for tourists; new sports made possible by zero-gravity, invented and advertised.

From Project Gutenberg

He was solemn, polite, frightened, tall for his age—funny how corn and kids grew at almost zero-gravity.

From Project Gutenberg