perturbation
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per·tur·ba·tion
(pûr′tər-bā′shən)n.
1.
a. The act of perturbing.
b. The state of being perturbed; agitation.
2. A small change in a physical system, such as a variation in a planet's orbit resulting from the gravitational influence of other celestial bodies.
per′tur·ba′tion·al adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
perturbation
(ˌpɜːtəˈbeɪʃən) orperturbance
n
1. the act of perturbing or the state of being perturbed
2. a cause of disturbance or upset
3. (General Physics) physics a secondary influence on a system that modifies simple behaviour, such as the effect of the other electrons on one electron in an atom
4. (Astronomy) astronomy a small continuous deviation in the inclination and eccentricity of the orbit of a planet or comet, due to the attraction of neighbouring planets
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
per•tur•ba•tion
(ˌpɜr tərˈbeɪ ʃən)n.
1. the act of perturbing.
2. the state of being perturbed.
3. deviation of a celestial body from a regular orbit about its primary, caused by the presence of one or more other bodies that act upon it.
[1325–75; Middle English perturbacioun (< Anglo-French) < Latin perturbātiō; see perturb, -tion]
per`tur•ba′tion•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
perturbation
One space body’s gravitational effect on another’s orbit.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  perturbation - an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me"agitation - a mental state of extreme emotional disturbance |
| 2. | perturbation - (physics) a secondary influence on a system that causes it to deviate slightly natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics" influence - the effect of one thing (or person) on another; "the influence of mechanical action" variation - (astronomy) any perturbation of the mean motion or orbit of a planet or satellite (especially a perturbation of the earth's moon) | |
| 3. |  perturbation - activity that is a malfunction, intrusion, or interruption; "the term `distress' connotes some degree of perturbation and emotional upset"; "he looked around for the source of the disturbance"; "there was a disturbance of neural function"activity - any specific behavior; "they avoided all recreational activity" bother, hassle, trouble, fuss - an angry disturbance; "he didn't want to make a fuss"; "they had labor trouble"; "a spot of bother" magnetic storm - a sudden disturbance of the earth's magnetic field; caused by emission of particles from the sun | |
| 4. |  perturbation - a disposition that is confused or nervous and upsetdiscomposure - a temperament that is perturbed and lacking in composure | |
| 5. | perturbation - the act of causing disorder disturbance - the act of disturbing something or someone; setting something in motion breakdown, dislocation - the act of disrupting an established order so it fails to continue; "the social dislocations resulting from government policies"; "his warning came after the breakdown of talks in London" |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
perturbation
nounThe American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
perturbation
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
perturbation
n. perturbación.
sentimiento de inquietud;
variación anormal de un estado regular a otro.
English-Spanish Medical Dictionary © Farlex 2012