a. Of or pertaining to the style of Vandyke the painter; used or represented by Vandyke. “His Vandyke dress.” Macaulay. [ Written also Vandyck. ] [ 1913 Webster ]

Vandyke brown (Paint.), a pigment of a deep semitransparent brown color, supposed to be the color used by Vandyke in his pictures. --
Vandyke collar or
Vandyke cape, a broad collar or cape of linen and lace with a deep pointed or scalloped edge, worn lying on the shoulders; -- so called from its appearance in pictures by Vandyke. --
Vandyke edge, an edge having ornamental triangular points. [ 1913 Webster ]

prop. n. A picture by Vandyke. Also, a Vandyke collar, or a Vandyke edge. [ Written also Vandyck. ] [ 1913 Webster ]

v. t. To fit or furnish with a Vandyke; to form with points or scallops like a Vandyke. [ R. ] [ Written also Vandyck. ] [ 1913 Webster ]

. A trim, pointed beard, such as those often seen in pictures by Vandyke. [ Webster 1913 Suppl. ]