'Plinth' definitions:

Definition of 'plinth'

noun

An architectural support or base (as for a column or statue) [syn: pedestal, plinth, footstall]

From: GCIDE

Plinth \Plinth\, n. [L. plinthus, Gr. ? a brick or tile, a plinth, perh. akin to E. flint: cf. F. plinthe.] (Arch.) In classical architecture, a vertically faced member immediately below the circular base of a column; also, the lowest member of a pedestal; hence, in general, the lowest member of a base; a sub-base; a block upon which the moldings of an architrave or trim are stopped at the bottom. See Illust. of Column. [1913 Webster]