conservation of mass

noun phrase

Definition of conservation of mass 

: a principle in classical physics: the total mass of any isolated material system is neither increased nor diminished by reactions between the parts

called also conservation of matter

First Known Use of conservation of mass

1884, in the meaning defined above

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The first known use of conservation of mass was in 1884

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conservation of mass

noun

Medical Definition of conservation of mass 

: a principle in classical physics: the total mass of any material system is neither increased nor diminished by reactions between the parts

called also conservation of matter, law of conservation of matter

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