perturb
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per·turb
(pər-tûrb′)tr.v. per·turbed, per·turb·ing, per·turbs
1. To disturb or confuse; make uneasy or anxious: I was perturbed by his off-color remarks.
2.
a. To cause (a system) to become altered or imbalanced from a normal state: volcanic eruptions that perturbed the climate.
b. Physics & Astronomy To cause perturbation in (the orbit of a celestial body, for example) by gravitational interaction.
[Middle English perturben, from Old French perturber, from Latin perturbāre : per-, per- + turbāre, to throw into disorder (from turba, confusion, perhaps from Greek turbē).]
per·turb′a·ble 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.
perturb
(pəˈtɜːb)vb (tr; often passive)
1. to disturb the composure of; trouble
2. to throw into disorder
3. (Astronomy) physics astronomy to cause (a planet, electron, etc) to undergo a perturbation
[C14: from Old French pertourber, from Latin perturbāre to confuse, from per- (intensive) + turbāre to agitate, from turba confusion]
perˈturbable adj
perˈturbably adv
perˈturbing adj
perˈturbingly adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
per•turb
(pərˈtɜrb)v.t.
1. to disturb or disquiet greatly in mind; agitate.
2. to throw into great disorder; derange.
3. to cause perturbation in the orbit of (a celestial body).
[1325–75; Middle English (< Old French perturber) < Latin perturbāre to throw into confusion =per- per- + turbāre to disturb; see turbid]
per•turb′a•ble, adj.
per•turb′er, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
perturb
Past participle: perturbed
Gerund: perturbing
| Imperative |
|---|
| perturb |
| perturb |
Collins English Verb Tables © HarperCollins Publishers 2011
ThesaurusAntonymsRelated WordsSynonymsLegend:
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| Verb | 1. |  perturb - disturb in mind or make uneasy or cause to be worried or alarmed; "She was rather perturbed by the news that her father was seriously ill" |
| 2. | perturb - disturb or interfere with the usual path of an electron or atom; "The electrons were perturbed by the passing ion" deviate - cause to turn away from a previous or expected course; "The river was deviated to prevent flooding" perturb - cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull; "The orbits of these stars were perturbed by the passings of a comet" | |
| 3. | perturb - cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull; "The orbits of these stars were perturbed by the passings of a comet" deviate - cause to turn away from a previous or expected course; "The river was deviated to prevent flooding" perturb - disturb or interfere with the usual path of an electron or atom; "The electrons were perturbed by the passing ion" | |
| 4. | perturb - throw into great confusion or disorder; "Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt" |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
perturb
verb disturb, worry, trouble, upset, alarm, bother, unsettle, agitate, ruffle, unnerve, disconcert, disquiet, vex, fluster, faze, discountenance, discompose He didn't seem to be perturbed by the news.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
perturb
verbThe 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
يُزْعِج، يُقْلِق
spléstzneklidnit
bekymreforurolige
valda hugarangri hjá
satrauktuztraukt
kaygılandırmak
perturb
[pəˈtɜːb] VT1. (= distress) → inquietar, preocupar
we are all very perturbed → estamos todos muy inquietos or preocupados
he didn't seem in the least perturbed → no parecía estar inquieto or preocupado en lo más mínimo
we are all very perturbed → estamos todos muy inquietos or preocupados
he didn't seem in the least perturbed → no parecía estar inquieto or preocupado en lo más mínimo
2. (= disturb) [+ calm, harmony] → perturbar
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
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
perturb
vt → beunruhigen
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
perturb
[pəˈtɜːb] vt → turbare, agitareI was perturbed to learn that ... → fui sconvolto nello scoprire che...
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
perturb
(pəˈtəːb) verb to make (someone) worried or anxious. His threats didn't perturb her in the least.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.