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Guignet's green

noun Gui·gnet's green \ (ˈ)gēn¦yāz- \

Definition of Guignet's green

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 2) — called also Mittler's green

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Origin and Etymology of guignet's green

after C.E. Guignet, 19th century French chemist who discovered the process

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