Winter in Chicago proves quite variable: Seasonal snowfall in the city has ranged from 9.8 inches (24.9 cm) (in 1920â21) up to 89.7 in (228 cm) (in 1978â79) and the average annual snowfall in Chicago is 36 inches (91 cm).
Fluctuation (noun). a wavering; unsteadiness; as, fluctuations of opinion; fluctuations of prices. Fluctuation (noun). the motion or undulation of a fluid collected in a natural or artifical cavity, which is felt when it is subjected to pressure or percussion.iktionary (0.00 / 0 votes) Rate this definition: fluctuation (Noun). A motion like that of waves; a moving in this and that direction. the fluctuations of the sea. fluctuation (Noun). A wavering; unsteadiness.
Quantum fluctuation is the temporary appearance of energetic particles out of nothing, as allowed by the Uncertainty Principle. It is synonymous with vacuum fluctuation. The Uncertainty Principle states that for a pair of conjugate variables such as position/momentum and energy/time, it is impossible to have a precisely determined value of each member of the pair at the same time.