Fluctuation

·noun A wavering; unsteadiness; as, fluctuations of opinion; fluctuations of prices.

II. Fluctuation ·noun A motion like that of waves; a moving in this and that direction; as, the fluctuations of the sea.

III. Fluctuation ·noun The motion or undulation of a fluid collected in a natural or artifical cavity, which is felt when it is subjected to pressure or percussion.