Definition of Proust, Joseph Louis in English:

Proust, Joseph Louis

Line breaks: Jo¦seph Louis Proust
Pronunciation: /pruːst
 
/
  • (1754–1826), French analytical chemist. He proposed the law of constant proportions, demonstrating that any pure sample of a chemical compound (such as an oxide of a metal) always contains the same elements in fixed proportions.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody