-
Trending Now:
More Trending:
- repugnant white nationalist, white supremacist bereft impanel cosmopolitan
- ALL
What's Trending Now
More Trending Words
fast red
noun,
often capitalized F&R
Definition of fast red
: any of several fast red azo dyes: such as a : a monoazo acid dye that dyes wool and silk red —called also Fast Red A b : a monoazo acid dye that dyes wool and silk claret and is used chiefly as a biological stain —called also Bordeaux B, Bordeaux red, Fast Red B
Read the Latest from M-W
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 fast red? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!