FLUCTUA'TION, noun [Latin fluctuatio.] 1. A motion like that of waves; a moving in this and that direction; as the fluctuations of the sea. 2. A wavering; unsteadiness; as fluctuations of opinion. 3. A rising and falling suddenly; as fluctuations of prices or of the funds.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI