American Dictionary of the English Language

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FLUC'TUATE, verb intransitive [Latin fluctuo, from fluctus, a wave, from fluo, to flow.]

1. To move as a wave; to roll hither and thither; to wave; as a fluctuating field of air.

2. To float backward and forward, as on waves.

3. To move now in one direction and now in another; to be wavering or unsteady. Public opinion often fluctuates. Men often fluctuate between different parties and opinions. Hence,

4. To be irresolute or undetermined.

5. To rise and fall; to be in an unsettled state; to experience sudden vicissitudes. The funds or the prices of stocks fluctuate with the events of the day.