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Also available:
World English Dictionary
Dictionnaire Français
conservation of mass
con·ser·va·tion of mass
or
con·ser·va·tion of mat·ter
noun
Definition:
mass remaining constant:
the principle that the total mass of an isolated system remains constant, in spite of any physical or chemical changes that may take place
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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