n. | 1. | A motion like that of waves; a moving in this and that direction; |
2. | A wavering; unsteadiness; | |
3. | (Med.) 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. |
Noun | 1. | fluctuation - a wave motion; "the fluctuations of the sea" |
2. | fluctuation - an instance of change; the rate or magnitude of change Synonyms: variation | |
3. | fluctuation - the quality of being unsteady and subject to fluctuations; "he kept a record of price fluctuations" Synonyms: wavering |