hollow relief

sunk relief

sunk relief
A carving or other type of relief that does not project beyond the flat surface on which it is cut; also called cavo-relievo.
References in periodicals archive ?
In approximately 320 color plates, readers are introduced to Yasuyuki Nishio, whose "hollow relief casting" technique gave way to a series of female corpses wearing the latest fashions; pop art and anime incorporating the grotesque, the sexy, and the adorable by Kumi Machida, Mahomi Kunikata, and Sako Kojima; and modern remarks on traditional art by Hisashi Tenmyouya, among others.