zero gravity

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noun Physics.

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

Also ze·ro-g, ze·ro-G [zeer-oh-jee] /ˈzɪər oʊˈdʒi/.

Origin of zero gravity

First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for zero gravity

Contemporary Examples of zero gravity

Historical Examples of zero gravity

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

    The Planet Strappers

    Raymond Zinke Gallun

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

    The Planet Strappers

    Raymond Zinke Gallun


British Dictionary definitions for zero gravity

zero gravity

noun

the state or condition of weightlessness
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

zero gravity in Science

zero gravity

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.