from
The Collaborative International Dictionary of English v.0.48
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