biorhythm Hear it!

biorhythm definition

bio·rhythm (bī′ō rit̸h′əm)

noun

any biological cycle that involves periodic changes in blood pressure, body temperature, etc.: analyzed by some to predict behavior, temperament, etc.

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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