Yahoo Web Search

Search results

1. Dictionary

   perturbation

   /ˌpəːtəˈbeɪʃn/

   noun

   • 1. anxiety; mental uneasiness: "she sensed her friend's perturbation"
   • ▪ a cause of anxiety or uneasiness: "Frank's atheism was more than a perturbation to Michael"
   • 2. a deviation of a system, moving object, or process from its regular or normal state or path, caused by an outside influence: "these shifts and swings in wildlife populations are possibly related to climatic perturbations"
   • ▪ a minor deviation in the course of a celestial body, caused by the attraction of a neighbouring body.

   Word Origin late Middle English: from Latin perturbatio(n-), from the verb perturbare ‘disturb greatly’ (see perturb).

   Scrabble Points: 16

   • P

     3

   • E

     1

   • R

     1

   • T

     1

   • U

     1

   • R

     1

   • B

     3

   • A

     1

   • T

     1

   • I

     1

   • O

     1

   • N

     1

   Powered by Oxford Dictionaries

   More definitions, origin and scrabble points