Definition

(Verb)

1 a : to make (something, such as color or a painting) less brilliant by covering with a thin coat of opaque or semiopaque color applied with a nearly dry brush

1 b : to apply (a color) in this manner

2 : to soften the lines or colors of (a drawing) by rubbing lightly

In Context

In an accomplished artist’s hands, oil paint is fluid; it can be scumbled or glazed; it’s a more versatile medium than tempera.

Cate McQuaid, “Leonardo da Worcester,” The Boston Globe, March 11, 2018.