n. A motion like that of waves; a waving; movement in different directions: as, the fluctuations of the sea.n. Alternating action or movement; a wavering or varying course; mutation: as, the fluctuations of prices or of the funds; fluctuations of opinion.n. In medicine, the alternating motion of pus or other fluids perceptible on palpation.n. Synonyms and Oscillation, vacillation.n. Produce; fruit.