Advertising R▼
Definition and meaning of perturbation
Definitions
perturbation (n.)
1.violent agitation
2.the state of being emotionally aroused and worked up"his face was flushed with excitement and his hands trembled" "he tried to calm those who were in a state of extreme inflammation"
3.the act of causing disorder
4.a disposition that is confused or nervous and upset
5.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"
6.(physics) a secondary influence on a system that causes it to deviate slightly
7.an unhappy and worried mental state"there was too much anger and disturbance" "she didn't realize the upset she caused me"
Advertizing ▼
Merriam Webster
PerturbationPer`tur*ba"tion (?), n. [L. perturbatio: cf. F. perturbation.]
1. The act of perturbing, or the state of being perturbed; esp., agitation of mind.
2. (Astron.) A disturbance in the regular elliptic or other motion of a heavenly body, produced by some force additional to that which causes its regular motion; as, the perturbations of the planets are caused by their attraction on each other. Newcomb.
Advertizing ▼
Definition (more)
⇨ definition of Wikipedia
Synonyms
perturbation (n.)
agitation, annoyance, civil unrest, commotion, disorganization, disquietude, disruption, disturbance, disturbances, excitation, excitement, fear, fervor, fervour, flurry, fluster, flutter, hurry, inflammation, intensity, stir, thrill, trouble, troubles, tumult, turmoil, unrest, upset, kerfuffle (colloquial, British)
See also
perturbation (n.)
↗ cause embarrassment, confound, confuse, discomfit, discompose, disconcert, dislocate, disorganize, disrupt, disturb, embarrass, faze, oppose, untune, upset
Phrases
⇨ Anomalous perturbation • Causal perturbation theory • Cosmological perturbation theory • First-order non-singular perturbation theory • Free energy perturbation • Heavy Baryon Chiral Perturbation Theory • Perturbation (astronomy) • Perturbation (biology) • Perturbation (geology) • Perturbation theory • Perturbation theory (quantum mechanics) • Phase perturbation • Simultaneous perturbation stochastic approximation • Singular perturbation • Variational perturbation theory
Analogical dictionary
perturbation (n.)
chose désordonnée (fr)[Classe]
chose défavorable (fr)[ClasseParExt...]
situation d'hostilité proche d'un conflit armé (fr)[Classe]
agitation sociale (fr)[ClasseHyper.]
grève et perturbation d'une activité ou du travail (fr)[termes liés]
mouvement dans l'espace sidéral (fr)[termes liés]
fonctionnement (machine) (fr)[DomaineCollocation]
disorganize, disrupt - perturber (fr)[Nominalisation]
agitation[Hyper.]
perturbation (n.)
emotional arousal - arousal[Hyper.]
excite, shake, shake up, stimulate, stir - excite - excite, stimulate, stir - exciting - unexciting[Dérivé]
perturbation (n.)
désorganisation (fr)[Classe]
organisation (fr)[Défaire]
perturbation (n.)
perturbation (n.)
perturbation (n.)
influence, pull[Hyper.]
perturbation (n.)
Wikipedia
Perturbation
 |
Look up perturbation or perturb in Wiktionary, the free dictionary. |
Perturbation or perturb may refer to any of numerous concepts in several fields:
- Perturbation theory, mathematical methods that give approximate solutions to problems that cannot be solved exactly
- Perturbation (geology), changes in the nature of alluvial deposits over time
- Perturbation (astronomy), alterations to an object's orbit e.g. caused by gravitational interactions with other bodies
- Perturbation theory (quantum mechanics), a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one
- Perturbation (biology), an alteration of the function of a biological system, induced by external or internal mechanisms
- Perturbation (transport), operation of a transport system outside of timetable such that delays in arrival and departure from defined locations are present.
- Perturbation function, mathematical function which relates the primal and dual problems.
See also
 |
This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article. |
sensagent's content
- definitions
- synonyms
- antonyms
- encyclopedia
Webmaster Solution
Alexandria
A windows (pop-into) of information (full-content of Sensagent) triggered by double-clicking any word on your webpage. Give contextual explanation and translation from your sites !
SensagentBox
With a SensagentBox, visitors to your site can access reliable information on over 5 million pages provided by Sensagent.com. Choose the design that fits your site.
Business solution
Improve your site content
Add new content to your site from Sensagent by XML.
Crawl products or adds
Get XML access to reach the best products.
Index images and define metadata
Get XML access to fix the meaning of your metadata.
Please, email us to describe your idea.
Lettris
Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
boggle
Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. You can also try the grid of 16 letters. Letters must be adjacent and longer words score better. See if you can get into the grid Hall of Fame !
English dictionary
Main references
Most English definitions are provided by WordNet .
English thesaurus is mainly derived from The Integral Dictionary (TID).
English Encyclopedia is licensed by Wikipedia (GNU).
Copyrights
The wordgames anagrams, crossword, Lettris and Boggle are provided by Memodata.
The web service Alexandria is granted from Memodata for the Ebay search.
The SensagentBox are offered by sensAgent.
Translation
Change the target language to find translations.
Tips: browse the semantic fields (see From ideas to words) in two languages to learn more.
computed in 0.031s