单词 | revolution |
释义 | revolution[ rev-uh-loo-shuhn ] / ˌrɛv əˈlu ʃən / SEE SYNONYMS FOR revolution ON THESAURUS.COM nounOrigin of revolution1350–1400; Middle English revolucion<Late Latin revolūtiōn- (stem of revolūtiō), equivalent to revolūt(us) (see revolute) + -iōn--ion SYNONYMS FOR revolution5 cycle, circuit, round, rotation. SEE SYNONYMS FOR revolution ON THESAURUS.COM OTHER WORDS FROM revolutionWORDS THAT MAY BE CONFUSED WITH revolutionrebellion, revolt, revolutionDictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for revolutionrevolution / (ˌrɛvəˈluːʃən) / nounWord Origin for revolutionC14: 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 revolutionrevolution [ 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. UsageIn 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. |
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