Ectypus

(ἔκτυπος), properly an adjective, “formed in a mould” (τύπος, forma), or “wrought in high relief,” thus distinguished from ἀνάγλυφος, “in low relief.” Hence (1) the noun ectypum, a cast in plaster or terra-cotta, which presents the objects in relief (Plin. H. N. xxxv. 152). The accompanying examples are from a terra-cotta and mould in the British Museum.

(2) Ectypa gemma (Sen. Ben. iii. 26) or scalptura (Plin. H. N. xxxvii. 173), an engraved stone cut in relief, now called a cameo. See caelatura; gemma.