from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various red or orange acid azo dyes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several synthetic yellow or scarlet dyestuffs that are diazo and sulphonic acid derivatives of benzene and naphthol.
from the GNU version of the Collaborative International Dictionary of English
- n. A name given to any one of several yellow or scarlet dyestuffs of artificial production and complex structure. In general they are diazo and sulphonic acid derivatives of benzene and naphthol.
from The Century Dictionary and Cyclopedia
- n. A name given to several acid coal-tar colors on account of the bright red they produce.
Latin croceus, saffron-colored (from crocus, saffron; see crocus) + -in.(American Heritage® Dictionary of the English Language, Fourth Edition)
See croceous. (Wiktionary)