fluctuation

/ˌflʌktʃuˈeɪʃən/
noun
  1. A change in level, amount, or value, especially one that happens often or regularly.
    • There is often a fluctuation in temperature between morning and afternoon.
    • The stock market saw a sharp fluctuation in prices this week.
    • Doctors monitor the fluctuation of a patient's blood pressure throughout the day.
  2. An irregular or unpredictable change in a situation or condition.
    • The company's success depends on managing the fluctuation of customer demand.
    • Farmers have to deal with the fluctuation of rainfall from year to year.
    • The fluctuation in her mood made it hard to know how she was feeling.
Antonyms