fluctuation

Definition of Fluctuation in English :

1. fluctuation

a wave motion

Example Sentences:
'the fluctuations of the sea'

2. fluctuation, variation

an instance of change; the rate or magnitude of change

3. fluctuation, wavering

the quality of being unsteady and subject to changes

Example Sentences:
'he kept a record of price fluctuations'

WordNet Lexical Database for English. Princeton University. 2010.

Fluctuation

noun

1.

constant change; vacillation; instability

2.

undulation

3.

a variation in an animal or plant that is determined by environment rather than heredity

intr.v. fluc·tu·at·ed, fluc·tu·at·ing, fluc·tu·ates

To vary irregularly, especially in amount: School enrollment has fluctuated from year to year.