'Modillion' definitions:

Definition of 'modillion'

noun

(architecture) one of a set of ornamental brackets under a cornice

From: GCIDE

Modillion \Mo*dil"lion\, n. [F. modillon, It. modiglione. Cf. Module, n.] (Arch.) The enriched block or horizontal bracket generally found under the cornice of the Corinthian and Composite entablature, and sometimes, less ornamented, in the Ionic and other orders; -- so called because of its arrangement at regulated distances. [1913 Webster]