Definition of ammonium dichromate
: a crystalline compound (NH4)2Cr2O7 used as a coloring agent in pyrotechnics and formerly in photographic development to enhance certain colors —called also ammonium bichromate
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.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
First Known Use of ammonium dichromate
Seen and Heard
What made you want to look up ammonium dichromate? Please tell us where you read or heard it (including the quote, if possible).