What's Trending Now
More Trending Words
bismuth oxide
noun
Definition of bismuth oxide
: an oxide of bismuth; especially : the trioxide Bi2O3 occurring naturally as bismite, obtained synthetically as a yellow powder, and used chiefly in painting porcelain
From the M-W Editors
There's more!
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up bismuth oxide? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!