n.a ceramic or mural decoration made by scratching off a surface layer to reveal the ground
英汉双解大词典
sgraffito/sɡræˈfiːtəʊ/
1.
N(名词)
a technique in mural or ceramic decoration in which the top layer of glaze, plaster, etc, is incised with a design to reveal parts of the ground 五彩拉毛粉饰