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English definition of “quantum”

quantum

noun [C, usually singular]     /ˈkwɒntəm/ formal
an amount of something: quantum of sth Earnings depend on the quantum of work done by you. During this period , the quantum of oil production increased to 16.10 million barrels from 15.84 million barrels last year .
(Definition of quantum noun from the Cambridge Business English Dictionary © Cambridge University Press)
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