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conservation of mass

n.
1.a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system

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  • conservation of energy
  • conservation of electricity
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  • conservation of matter
  • conservation of momentum
  • conservation of parity
  • conservationist
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  • conservative
  • conservative jew
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  • genus myrciaria
  • subphylum tunicata
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  • Idiom of the Day

    get on in years
    to become older
    My uncle is getting on in years and is not very healthy.



    1.
    These jeans will ________ when you wash them the first time

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