An example of fluctuate is when a temperature goes from hot to cold to hot.
- 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 fl&umacron;ctuare, fl&umacron;ctuat-, from fl&umacron;ctus, a flowing, from past participle of fluere, to flow; see bhleu- in Indo-European roots.