noun
1.
a. : a pigment made of ground malachite
b. : a similar pigment made synthetically
2. sometimes capitalized M&G : a triphenylmethane basic dye prepared from benzaldehyde and dimethylaniline and used chiefly in coloring paper bluish green, in making organic pigments, in industrial and biological stains, and also in medicine as an antiseptic — called also Victoria green ; see dye table I (under Basic Green 4, Pigment Green 4, Solvent Green 1 )
3. also malachite : a moderate yellowish green that is greener, stronger, and slightly lighter than tarragon, lighter and stronger than average almond green, and deeper and slightly yellower than verdigris — called also Bremen green, copper green, green verditer, Hungarian green, iris green, mineral green, mountain green, Olympian green, shale green, Tyrolese green, verditer green