microgravity

[ mahy-kroh-grav-i-tee ]

/ ˈmaɪ kroʊˌgræv ɪ ti /

noun

a condition, especially in space orbit, where the force of gravity is so weak that weightlessness results.

Origin of microgravity

First recorded in 1980–85; micro- + gravity

Words nearby microgravity

microgram, micrograph, micrographia, micrographics, micrography, microgravity, microgreen, microgreens , microgroove, microgyria, microhabitat

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for microgravity

microgravity

/ (ˈmaɪkrəʊˌɡrævɪtɪ) /

noun

the very low apparent gravity experienced in a spacecraft in earth orbit

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

Scientific definitions for microgravity

microgravity

[ mī′krō-grăv′ĭ-tē ]

A condition in which an object in the gravitational field of some other body (such as the Earth) is accelerated freely as a result of the gravitational force. Free-falling objects, such as a skydiver or a satellite orbiting the Earth, are in a condition of microgravity, while objects held up by forces resisting gravity (as in the case of objects resting on the Earth's surface) or held up by aerodynamic forces (as in the case of birds or aircraft) are not. Since the normal experience of weight on Earth is the result of forces that resist gravity, objects in microgravity appear weightless. Not all effects of gravity are eliminated in such conditions; tidal forces, for example, still affect bodies in microgravity, especially large bodies such as the Earth and the Moon.

单词	microgravity
释义	microgravity [ mahy-kroh-grav-i-tee ] / ˈmaɪ kroʊˌgræv ɪ ti / noun a condition, especially in space orbit, where the force of gravity is so weak that weightlessness results. Origin of microgravity First recorded in 1980–85; micro- + gravity Words nearby microgravity microgram, micrograph, micrographia, micrographics, micrography, microgravity, microgreen, microgreens , microgroove, microgyria, microhabitat Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for microgravity microgravity / (ˈmaɪkrəʊˌɡrævɪtɪ) / noun the very low apparent gravity experienced in a spacecraft in earth orbit 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 Scientific definitions for microgravity microgravity [ mī′krō-grăv′ĭ-tē ] A condition in which an object in the gravitational field of some other body (such as the Earth) is accelerated freely as a result of the gravitational force. Free-falling objects, such as a skydiver or a satellite orbiting the Earth, are in a condition of microgravity, while objects held up by forces resisting gravity (as in the case of objects resting on the Earth's surface) or held up by aerodynamic forces (as in the case of birds or aircraft) are not. Since the normal experience of weight on Earth is the result of forces that resist gravity, objects in microgravity appear weightless. Not all effects of gravity are eliminated in such conditions; tidal forces, for example, still affect bodies in microgravity, especially large bodies such as the Earth and the Moon. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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