revolution
[ rev-uh-loo-shuhn ]
/ ˌrɛv əˈlu ʃən /
noun
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Origin of revolution
SYNONYMS FOR revolution
OTHER WORDS FROM revolution
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for revolution
revolution
/ (ˌrɛvəˈluːʃən) /
noun
Word Origin for revolution
C14: via Old French from Late Latin revolūtiō, from Latin revolvere to revolve
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 revolution
revolution
[ rĕv′ə-lōō′shən ]
The motion of an object around a point, especially around another object or a center of mass.
A single complete cycle of such motion.
Usage
In everyday speech revolution and rotation are often used as synonyms, but in science they are not synonyms and have distinct meanings. The difference between the two terms lies in the location of the central axis that the object turns about. If the axis is outside the body itself-that is, if the object is orbiting about another object-then one complete orbit is called a revolution. But if the object is turning about an axis that passes through itself, then one complete cycle is called a rotation. This difference is often summed up in the statement Earth rotates on its axis and revolves around the Sun.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.