To fluctuate is defined as to change in amount or rise and fall.(verb)
An example of fluctuate is when a temperature goes from hot to cold to hot.
See fluctuate in Webster's New World College Dictionary
Origin: < L fluctuatus, pp. of fluctuare < fluctus, a flowing, wave < pp. stem of fluere, to flow < IE *bhleu-, to swell up, flow (> bluster) < base *bhel-, to swell up > ball
See fluctuate in American Heritage Dictionary 4
verb fluc·tu·at·ed, fluc·tu·at·ing, fluc·tu·ates verb, intransitive
Origin: Latin flūctuāre, flūctuāt-
Origin: , from flūctus, a flowing
Origin: , from
Origin: past participle of fluere, to flow; see bhleu- in Indo-European roots.
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