Guignet's green
noun
Gui·gnet's green
(ˈ)gēn¦yāz-
1
: a bluish green pigment of good brilliance and permanence consisting of a hydrated chromic oxide made by fusion of sodium dichromate and boric acid and hydrolysis of the product
2
: a dark bluish green that is greener and stronger than average teal green and greener, lighter, and stronger than invisible green (see invisible green sense 2)
called also Mittler's green
Word History
Etymology
after C.E. Guignet, 19th century French chemist who discovered the process