Definition of fast scarlet R base
: an orange-red crystalline amine CH3OC6H3(NO2)NH2 that is often sold in the form of its stabilized diazonium complex salt with zinc chloride and is used in producing azoic dyes; 4-nitro-ortho-anisidine
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share fast scarlet R base