law of definite proportions

noun phrase

Definition of law of definite proportions

: a statement in chemistry: every definite compound always contains the same elements in the same proportions by weight

First Known Use of law of definite proportions

1830, in the meaning defined above

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The first known use of law of definite proportions was in 1830

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Cite this Entry

“Law of definite proportions.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/law%20of%20definite%20proportions. Accessed 8 Aug. 2020.

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More Definitions for law of definite proportions

law of definite proportions

noun
law of def·​i·​nite pro·​por·​tions | \ -ˈdef-(ə-)nət-prə-ˈpȯr-shənz How to pronounce law of definite proportions (audio) \

Medical Definition of law of definite proportions

: a statement in chemistry: every definite compound always contains the same elements in the same proportions by weight

More from Merriam-Webster on law of definite proportions

Britannica.com: Encyclopedia article about law of definite proportions

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