fluctuation (plural fluctuations)
- A motion like that of waves; a moving in this and that direction.
- the fluctuations of the sea
- A wavering; unsteadiness.
- fluctuations of opinion
- fluctuations of prices
- In medicine, a wave-like motion or undulation of a fluid in a natural or abnormal cavity (e.g. pus in an abscess), which is felt during palpation or percussion.