DictionaryfluctuationIrregular change
noun

fluctuation

fluk-choo-AY-shun/ˌflʌktʃuˈeɪʃn/

An irregular rise and fall in level or amount.

The graph shows repeated, uneven fluctuations in the measured amount.

A simple monitor displays a single line graph with repeated, uneven rises and falls, making irregular changes in amount visible rather than suggesting a steady trend or regular wave.
Etymology

The action noun built on “move in waves” already meant “wavering” or “vacillation” in Latin. The wave image connects that unsteadiness with an irregular rise and fall in amount.

In context

1221 Manhwa Recap166:57
That's the normal price; right now it should fetch thirty to fifty percent more." Seeing my violent reaction, he hastily added. " There's been that much fluctuation lately?
My Skill Was Rated ZERO Stars. So I Cast It 100,000 Times.—Weakest Mage → God of Fire.

More examples

  • Currency fluctuation affected the cost of the shipment.
  • The device recorded a small fluctuation in pressure.
  • They adjusted the schedule to account for seasonal fluctuations.

Forms

fluctuation · fluctuations

Similar words

variation
Variation is any difference or change; fluctuation repeatedly rises and falls.
oscillation
Oscillation often repeats regularly; fluctuation may be uneven and unpredictable.