primuline
noun
prim·u·line
ˈprimyəˌlēn,
-lə̇n
plural -s
: a fugitive yellow dye made by heating para-toluidine and sulfur together and sulfonating the product that can be diazotized on the fiber and coupled with a phenol or amine to yield various developed dyes (as red colors of good fastness to washing but not to light)
Word History
Etymology
International Scientific Vocabulary primul- (from New Latin Primula) + -ine