meaning of fluctuation
1. A motion like that of waves; a moving in this and that direction; as, the fluctuations of the sea.
2. A wavering; unsteadiness; as, fluctuations of opinion; fluctuations of prices.
3. 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.
4. the quality of being unsteady and subject to fluctuations; "he kept a record of price
">fluctuations"