law of definite proportions

noun phrase

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

Word History

First Known Use

1830, in the meaning defined above

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

Dictionary Entries Near law of definite proportions

law of cosines

law of definite proportions

law of demand

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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 22 Nov. 2024.

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Kids Definition

law of definite proportions

: a law of chemistry that states that every definite compound always contains the same elements in the same proportions by mass

Medical Definition

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)
: 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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