WordWeb Online

1. A wave motion
   "the fluctuations of the sea"
    
2. An instance of change; the rate or magnitude of change
   - variation
    
3. The quality of being unsteady and subject to changes
   "he kept a record of price fluctuations";
   - wavering

Derived forms: fluctuations

Type of: alteration, change, irregularity, modification, undulation, unregularity, wave

Encyclopedia: Fluctuation