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consequentialism
consequently
conservancy
conservation
conservation area
conservation biology
conservation of charge
conservation of energy
conservation of mass
conservation of momentum
conservation officer
conservationist
Conservatism
conservatism
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Conservative Judaism
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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
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