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English definition of “mass”

mass

noun [C] (PHYSICS)    /mæs/ specialized
the amount of matter in any solid object or in any volume of liquid or gas : The acceleration of a body equals the force exerted on it divided by its mass.Area, mass, weight and volume in general
(Definition of mass noun (PHYSICS) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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