[Vandyke brown] n [fr. its use by the painter Vandyke] (ca. 1850): a natural brown-black pigment of organic matter obtained from bog earth or peat or lignite deposits; also: any of various synthetic brown pigments
VANDYKE BROWN
Meaning of VANDYKE BROWN in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012