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center of gravity

Mechanics. the point through which the resultant of gravitational forces on a body passes and from which the resultant force of attraction of the body on other bodies emanates: coincident with the center of mass in a uniform gravitational field.
a person, thing, or idea that is the vital or pivotal focus of interest or activity within a larger entity.
Origin of center of gravity
1650-60 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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center-of-gravity in Science
center of gravity
The center of mass of an object in the presence of a uniform gravitational field.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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center-of-gravity in Culture

center of gravity definition

The point in any solid where a single applied force could support it; the point where the mass of the object is equally balanced. The center of gravity is also called the center of mass. When a man on a ladder leans sideways so far that his center of gravity is no longer over his feet, he begins to fall.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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