- To fluctuate is defined as to change in amount or rise and fall.
An example of fluctuate is when a temperature goes from hot to cold to hot.
intransitive verbfluctuated, fluctuating
- to move back and forth or up and down; rise and fall; undulate, as waves
- to be continually changing or varying in an irregular way: prices fluctuated wildly
Origin of fluctuate; from Classical Latin fluctuatus, past participle of fluctuare ; from fluctus, a flowing, wave ; from past participle stem of fluere, to flow ; from Indo-European an unverified form bhleu-, to swell up, flow (from source bluster) ; from base an unverified form bhel-, to swell up from source ball
intransitive verbfluc·tu·at·ed, fluc·tu·at·ing, fluc·tu·ates
Origin of fluctuateLatin flūctuāre, flūctuāt-, from flūctus, a flowing, from past participle of fluere, to flow; see bhleu- in Indo-European roots.