Definition of Perturbation

1. Noun. An unhappy and worried mental state. "She didn't realize the upset she caused me"

Exact synonyms: Disturbance, Upset
Generic synonyms: Agitation
Derivative terms: Disturb, Perturb, Upset, Upset



2. Noun. (physics) a secondary influence on a system that causes it to deviate slightly.
Category relationships: Natural Philosophy, Physics
Generic synonyms: Influence
Specialized synonyms: Variation
Derivative terms: Perturb, Perturb

3. Noun. Activity that is a malfunction, intrusion, or interruption. "There was a disturbance of neural function"
Exact synonyms: Disturbance
Generic synonyms: Activity
Specialized synonyms: Bother, Fuss, Hassle, Trouble, Magnetic Storm

4. Noun. A disposition that is confused or nervous and upset.
Exact synonyms: Fluster
Generic synonyms: Discomposure
Derivative terms: Fluster, Fluster, Perturb, Perturb

5. Noun. The act of causing disorder.
Exact synonyms: Disruption
Generic synonyms: Disturbance
Specialized synonyms: Breakdown, Dislocation, Surprisal, Surprise
Derivative terms: Disrupt, Perturb, Perturb

Definition of Perturbation

1. n. The act of perturbing, or the state of being perturbed; esp., agitation of mind.

Definition of Perturbation

1. Noun. Agitation; the state of being perturbed ¹

2. Noun. A small change in a physical system, or more broadly any definable system (such as a biological or economic system) ¹

3. Noun. (countable astronomy physics) Variation in an orbit due to the influence of external bodies ¹

¹ Source: wiktionary.com

Definition of Perturbation

1. [n -S]

Medical Definition of Perturbation

1. 1. The act of perturbing, or the state of being perturbed; especially, agitation of mind. 2. 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. Origin: L. Perturbatio: cf. F. Perturbation. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Perturbation

pertransient
pertrochanteric fracture
perts
pertsevite
pertuisan
pertuisans
perturb
perturbability
perturbable
perturbance
perturbances
perturbate
perturbated
perturbates
perturbating
perturbation
perturbational
perturbations
perturbative
perturbatively
perturbativity
perturbator
perturbators
perturbatour
perturbatours
perturbed
perturber
perturbers
perturbing
perturbingly

Literary usage of Perturbation

Below you will find example usage of this term as found in modern and/or classical literature:

1. Technical Digest edited by G. W. Day, D. L. Franzen, P. A. Williams (1999)
"Unlike other perturbation and direct inversion methods, which require smoothing of the near-field data, our method works by smoothing the perturbation. ..."

2. Quantum Statistical Mechanics and Lie Group Harmonic Analysis by Norman Hurt, Robert Hermann (1980)
"If one does adopt such a “perturbation” point of view, regarding, say B as a “perturbation” of A, then one has available the whole bag of tricks that go ..."

3. The Geometry of Non-linear Differential Equations, Bäcklund Transformations by Robert Hermann (1977)
"INTRODUCTION The topic called “singular perturbation theory” is one of the most active ... This reflects the “singular” nature of the perturbation problem. ..."

4. Proceedings of the American Association for the Advancement of Science (1872)
"A DISCUSSION ON Perturbation OF FORCES. By JAMES D. WARNER, of Brooklyn, NY BY Perturbation of Forces is meant a disturbance of the static forces (the ..."

5. An Elementary Treatise on the Planetary Theory: With a Collection of Problems by Charles Hartwell Horne Cheyne (1870)
"To obtain the equation for the perturbation in latitude. From equation (8) of Art. 103, we have d* (r sinX) p (r sin X) _ dR dff ] ~f~ = Tz' Since the p]ane ..."

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