ădumbrātĭo, ōnis, f. [adumbro], a sketch in shadow, à la silhouette, a perspective sketch or draft (cf. adumbro).
I Lit.: scenographia est frontis et laterum abscedentium adumbratio, Vitr. 1, 2.—
II Fig., a sketch , outline : nulla est laus oratoris, cujus in nostris orationibus non sit aliqua, si non perfectio, at conatus tamen atque adumbratio, * Cic. Or. 29.—Hence,
B A false show , the semblance of a thing , pretence : insidiosa beneficii adumbratio, Val. Max. 7, 3, 8; cf. Cic. Off. 1, 14, 44.