Law of Constant Proportion

nounverified·updated May 18, 2026

(chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight

Framework senses

2 senses across 2 frameworks

Wordset Dictionary1 senseview framework →

§1: (chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight

Legacy lexicon import1 senseview framework →

§1 · legacy_primary: (chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight
DR-088 backfill from the noun definition column