fluctuation
1. [ noun ] an instance of change; the rate or magnitude of change
Synonyms: variation
Related terms: change deviation diurnal_variation substitution tide daily_variation vicissitude business_cycle allomerism fluctuate
2. [ noun ] (physics) a wave motion
Examples:

"the fluctuations of the sea"

Related terms: wave fluctuate
3. [ noun ] the quality of being unsteady and subject to fluctuations
Synonyms: wavering
Examples:

"he kept a record of price fluctuations"

Related terms: irregularity scintillation fluctuate
Similar spelling:   fluctuating
  flection
  fluctuate