Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
1835, in the meaning defined above
French, from Joseph L. Proust †1826 French chemist
Keep scrolling for more
Resources for proustite
Time Traveler for proustite
See more words from the same year
More from Merriam-Webster on proustite
Britannica.com: Encyclopedia article about proustite
Comments on proustite
What made you want to look up proustite? Please tell us where you read or heard it (including the quote, if possible).
esteemed in general opinion
Get Word of the Day daily email!
What did you just call me?! A Quiz
Test your vocabulary with our 10-question quiz!
Test Your Knowledge - and learn some interesting things along the way.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
It relates to godfathers.
Nothing to see here.
Words from the week of 2/15/2019
Is 'orientate' a real word?
Comedian ISMO on what separates a boot from a trunk
Comedian ISMO on the complexities of the word 'tip'
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
Never be caught off guard
A quiz for lovers and haters
A game of winding words.