fluctuation

noun

fluc·​tu·​a·​tion ˌflək-chə-ˈwā-shən 

-chü-ˈā-

plural fluctuations

: an act or instance of fluctuating : an irregular shifting back and forth or up and down in the level, strength, or value of something

Small fluctuations in prices are to be expected.

Some fluctuation in real estate values is not unusual.

North American species in general, having contended with blazing July days and frosty September nights as they evolved, are much more tolerant of temperature fluctuations than tropical species are.

—Jonathan Franzen

fluctuational

ˌflək-chə-ˈwā-sh(ə-)nəl 

-chü-ˈā-

adjective

Synonyms

• change
• flux
• inconstancy
• oscillation

Examples of fluctuation in a Sentence

political instability that resulted in wild fluctuations in the overseas stock markets

Recent Examples on the Web

Understanding these fluctuations is crucial for crafting tokenomics models that remain resilient and effective across varying market conditions. —Tomer Warschauer Nuni, Forbes, 12 Dec. 2024

Despite recent fluctuations, the labor market remains a key pillar of the U.S. economy, navigating challenges from inflationary pressures and elevated interest rates. —Thomas G. Moukawsher, Newsweek, 12 Dec. 2024

Don’t forget, though—investing is a long-term strategy, so avoid pulling money out at the first sign of market fluctuations. —Kody Boye, Journal Sentinel, 12 Dec. 2024

The digital currencies market is very volatile, often leading to fluctuation in demand for the GPUs. —Zach Schonfeld, The Hill, 11 Dec. 2024

Word History

First Known Use

15th century, in the meaning defined above

Medical Definition

fluctuation

noun

fluc·​tu·​a·​tion ˌflək-chə-ˈwā-shən 

1

: a motion like that of waves

especially : the wavelike motion of a fluid collected in a natural or artificial cavity of the body observed by palpation or percussion

2

a

: a slight and nonheritable variation

especially : such a variation occurring in response to environmental factors

b

: recurrent and often more or less cyclic alteration (as of form, size, or color of a bodily part)

fluctuate

ˈflək-chə-ˌwāt 

verb

fluctuated; fluctuating