fluctuation

/flʌkt͡ʃuːˈeɪʃən/

fluctuation means A motion like that of waves; a moving in this and that direction; an irregular rising and falling. Lexicurio rates it Rare gem — a strength score of 73 out of 100.

fluctuation is pronounced /flʌkt͡ʃuːˈeɪʃən/.

Etymology

Borrowed from Latin fluctuatiōnem, accusative singular of fluctuatiō, from fluctuō, from fluctus. Morphologically fluctuate + -ion.

noun

A motion like that of waves; a moving in this and that direction; an irregular rising and falling.“the fluctuations of the sea”
A wavering; unsteadiness.“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.