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Noun: law of definite proportions
  1. (chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight
    - law of constant proportion

Type of: law, law of nature

Encyclopedia: Law of definite proportions

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law of areas
law of averages
law of chemical equilibrium
law of closure
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law of conservation of mass
law of conservation of matter
law of constant proportion
law of continuation
law of definite proportions
law of diminishing returns
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law of equal areas
law of equivalent proportions
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law of large numbers
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Law of Moses
law of motion