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Law of Constant Proportion

nounid 83971·updated May 18, 2026
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(chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight

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unclassified

Variants

synonym
law of definite proportions
plural
Law of Constant Proportions
possessive
Law of Constant Proportion's
pluralpossessive
Law of Constant Proportions'

Framework definitions

Wordset Dictionary1 senseview framework →
§1
(chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight

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