Английский разговорный словарь (основной) - scumble
Scumble
scumble
ˈskʌmbl v. & n. --v.tr. 1 modify (a painting) by applying a thinopaquecoat of paint to give a softer or duller effect. 2 modify (a drawing) similarly withlight pencilling etc. --n. 1 material used in scumbling. 2 the effect produced by scumbling. [perh. frequent. of SCUM v.tr.]