fluctuation
Pronunciation:
/flʌktʃuːˈeɪʃən/noun
Definitions
A motion like that of waves; a moving in this and that direction.
Example: the fluctuations of the sea
A wavering; unsteadiness.
Example: fluctuations of opinion
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.