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RELATED WORDS
orbit, cycle, gyration, circle, revolution, circumvolution, torque, vortex, turn, eddy, succession, spin, turning
Nearby words
Origin of rotation
Related formsro·ta·tion·al, adjectivenon·ro·ta·tion, nounnon·ro·ta·tion·al, adjectiveun·ro·ta·tion·al, adjective
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for rotation
British Dictionary definitions for rotation
rotation
/ (rəʊˈteɪʃən) /
noun
the act of rotating; rotary motion
a regular cycle of events in a set order or sequence
a planned sequence of cropping according to which the crops grown in successive seasons on the same land are varied so as to make a balanced demand on its resources of fertility
maths
- a circular motion of a configuration about a given point or line, without a change in shape
- a transformation in which the coordinate axes are rotated by a fixed angle about the origin
- another name for curl (def. 11) Abbreviation (for sense 4c): rot
- the spinning motion of a body, such as a planet, about an internal axisCompare revolution (def. 5a)
- one complete turn in such motion
Derived Formsrotational, adjective
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
Word Origin and History for rotation
rotation
1550s, from Latin rotationem (nominative rotatio) "a turning about in a circle," noun of action from past participle stem of rotare "turn round, revolve, whirl about, roll," from PIE *roto- (see rotary).
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for rotation
rotation
[ rō-tā′shən ]
n.
The act or process of turning around a center or an axis.
Regular and uniform variation in a sequence or series, as in the recurrence of symptoms of a disease.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for rotation
rotation
[ rō-tā′shən ]
The motion of an object around an internal axis.
A single complete cycle of such motion. See Note at revolution.
A transformation of a coordinate system in which the new axes have a specified angular displacement from their original position while the origin remains fixed.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.