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PERTURBATION

Pronunciation (US): 

 Dictionary entry overview: What does perturbation mean? 

PERTURBATION (noun)
  The noun PERTURBATION has 5 senses:

1. an unhappy and worried mental state
2. (physics) a secondary influence on a system that causes it to deviate slightly
3. activity that is an intrusion or interruption
4. a disposition that is confused or nervous and upset
5. the act of causing disorder

  Familiarity information: PERTURBATION used as a noun is common.


 Dictionary entry details 


PERTURBATION (noun)


Sense 1perturbation [BACK TO TOP]

Meaning:

An unhappy and worried mental state

Classified under:

Nouns denoting stable states of affairs

Synonyms:

perturbation; upset; disturbance

Context examples:

there was too much anger and disturbance / she didn't realize the upset she caused me

Hypernyms ("perturbation" is a kind of...):

agitation (a mental state of extreme emotional disturbance)


Sense 2perturbation [BACK TO TOP]

Meaning:

(physics) a secondary influence on a system that causes it to deviate slightly

Classified under:

Nouns denoting natural phenomena

Hypernyms ("perturbation" is a kind of...):

influence (the effect of one thing (or person) on another)

Domain category:

natural philosophy; physical science; physics (the science of matter and energy and their interactions)

Hyponyms (each of the following is a kind of "perturbation"):

variation ((astronomy) any perturbation of the mean motion or orbit of a planet or satellite (especially a perturbation of the earth's moon))


Sense 3perturbation [BACK TO TOP]

Meaning:

Activity that is an intrusion or interruption

Classified under:

Nouns denoting natural events

Synonyms:

disturbance; perturbation

Context examples:

he looked around for the source of the disturbance / there was a disturbance of neural function

Hypernyms ("perturbation" is a kind of...):

activity (any specific behavior)

Hyponyms (each of the following is a kind of "perturbation"):

bother; fuss; hassle; trouble (an angry disturbance)

magnetic storm (a sudden disturbance of the earth's magnetic field; caused by emission of particles from the sun)


Sense 4perturbation [BACK TO TOP]

Meaning:

A disposition that is confused or nervous and upset

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

fluster; perturbation

Hypernyms ("perturbation" is a kind of...):

discomposure (a temperament that is perturbed and lacking in composure)


Sense 5perturbation [BACK TO TOP]

Meaning:

The act of causing disorder

Classified under:

Nouns denoting acts or actions

Synonyms:

disruption; perturbation

Hypernyms ("perturbation" is a kind of...):

disturbance (the act of disturbing something or someone; setting something in motion)

Hyponyms (each of the following is a kind of "perturbation"):

breakdown; dislocation (the act of disrupting an established order so it fails to continue)

surprisal; surprise (the act of surprising someone)


 Learn English with... Proverbs of the week 
"A lie has no legs." (English proverb)

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 PERTURBATION: related words searches 

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