conservation of mass
noun phrase
: 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
Word History
First Known Use
1884, in the meaning defined above
Medical Definition
conservation of mass
noun
: 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