quantum: Meaning and Definition of
Pronunciation: (kwon'tum), [key]
— n., pl. adj. -ta
- quantity or amount: the least quantum of evidence.
- a particular amount.
- a share or portion.
- a large quantity; bulk.
- the smallest quantity of radiant energy, equal to Planck's constant times the frequency of the associated radiation.
- the fundamental unit of a quantized physical magnitude, as angular momentum.
- sudden and significant: a quantum increase in productivity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.