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Dictionary


per•tur•ba•tion



Pronunciation: (pûr"tur-bā'shun), [key]
n.
1. the act of perturbing.
2. the state of being perturbed.
3. mental disquiet, disturbance, or agitation.
4. a cause of mental disquiet, disturbance, or agitation.
5. Astron.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 the celestial body.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

perturbperturbative
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