'Theriac' definitions:

Definition of 'Theriac'

From: GCIDE

Theriac \The"ri*ac\, Theriacal \The*ri"a*cal\, a. [Cf. F. th['e]riacal.] Of or pertaining to theriac; medicinal. "Theriacal herbs." --Bacon. [1913 Webster]

From: GCIDE

Theriac \The"ri*ac\, Theriaca \The*ri"a*ca\, n. [L. theriaca an antidote against the bite of serpents, Gr. ?: cf. F. th['e]riaque. See Treacle.]
1. (Old Med.) An ancient composition esteemed efficacious against the effects of poison; especially, a certain compound of sixty-four drugs, prepared, pulverized, and reduced by means of honey to an electuary; -- called also theriaca Andromachi, and Venice treacle. [1913 Webster]
2. Treacle; molasses. --British Pharm. [1913 Webster] Theriac