caelāmen, ĭnis, n. [caelo],
a basso-relievo (prob. formed by Ovid; rare): clipei caelamina, Ov. M. 13, 291; Ap. Flor. n. 7; id. de Deo Socr. p 40, 30 Elm.
caelāmen inis, n caelo, a bass-relief : clipei caelamina, O. ...
An Elementary Latin Dictionary