Dictionary.com
definitions
  • synonyms

fluctuation

[fluhk-choo-ey-shuh n]
See more synonyms for fluctuation on Thesaurus.com
noun
  1. continual change from one point or condition to another.
  2. wavelike motion; undulation.
  3. Genetics. a body variation due to environmental factors and not inherited.
Show More

Origin of fluctuation

1400–50; late Middle English < Latin fluctuātiōn- (stem of fluctuātiō) a fluctuation, wavering. See fluctuate, -ion
Related formsnon·fluc·tu·a·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

variation, change, inconstancy

Examples from the Web for fluctuation

Contemporary Examples

Historical Examples

  • Two countries, at least, are concerned in the fluctuation of every rate.

  • These are the main influences bearing on the fluctuation of exchange.

  • The solidity was all in the superstructure; the fluctuation had been all in the foundations.

  • The price of cauliflowers is less subject to fluctuation than that of most other vegetables.

    The Cauliflower

    A. A. Crozier

  • Prices fluctuate, and their fluctuation is apt to be deceptive.

    The Book-Collector

    William Carew Hazlitt


British Dictionary definitions for fluctuation

fluctuation

noun
  1. constant change; vacillation; instability
  2. undulation
  3. a variation in an animal or plant that is determined by environment rather than heredity
Show More
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for fluctuation

n.

mid-15c., from Middle French fluctuation (12c.) or directly from Latin fluctuationem (nominative fluctuatio) "a wavering, vacillation," noun of action from past participle stem of fluctuare "to undulate, to move in waves," from fluctus "wave, billow, surge," from past participle of fluere "to flow" (see fluent).

Show More
Online Etymology Dictionary, © 2010 Douglas Harper