0 past simple and past participle of fluctuate
1 to change, especially continuously and between one level or thing and another:
The nominal rate of tax fluctuated between 1s and 4s in the early eighteenth century, as governments tried to relieve the burden in peace time.
However, the levels of infection in female and male fish fluctuated in different months but no statistical difference was observed.
Although prevalence values fluctuated during the study period, they never exceeded 36%.
Cereal yields, as indicators of output, fluctuated over the period of the trial, masking any possible long-term change.
An interesting result of the archival revolution was to demonstrate that the relationship between the two was not constant but fluctuated over time.
Thereafter, it gradually increased but fluctuated widely through the remaining period.
Between 1985 and 1989, production tended to rise, although it fluctuated sharply from year to year.
The use of threshing machines has always fluctuated in tandem with the ability of farmers to access liquid cash.
