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ˌfluctuˈation

British  
/ ˌflʌktjʊˈeɪʃən /

noun

  1. constant change; vacillation; instability

  2. undulation

  3. a variation in an animal or plant that is determined by environment rather than heredity

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.