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pseudo force

noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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pseudo force in Science
pseudo force
  (s'dō)   
A physically apparent but nonexistent force felt by an observer in a noninertial frame (that is, a frame undergoing acceleration). Newton's laws of motion hold true within such a reference frame only if the existence of such a force is presumed. The centrifugal force is an example of a pseudo force.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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