Толковый словарь английского языка Oxford English Reference - quantum
Quantum
quantum
n. (pl. quanta) 1 Physics a a discrete quantity of energy proportional in magnitude to the frequency of radiation it represents. b an analogous discrete amount of any other physical quantity. 2 a a required or allowed amount. b a share or portion. Phrases and idioms quantum jump (or leap) 1 a sudden large increase or advance. 2 Physics an abrupt transition in an atom or molecule from one quantum state to another. quantum mechanics (or theory) Physics a system or theory using the assumption that energy exists in discrete units. Etymology: L, neut. of quantus how much
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1.
I. noun (plural quanta) Etymology: Latin, neuter of quantus how much Date: 1567 1. quantity, amount, portion, part, gross quantity ; bulk, 2. any of the very small increments or parcels into which many forms of energy are subdivided, any of the small subdivisions of a quantized physical magnitude (as magnetic moment), II. adjective Date: 1942 large, significant , of, relating to, or employing the principles of ~ mechanics ...Толковый словарь английского языка
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