Lewis & Short

thērĭăcus, a, um, adj., = θηριακός, good against the poison of animals, esp. against the bite of serpents.

  1. I. Adj.: pastilli, Plin. 29, 4, 21, § 70: vitis, Pall. Febr. 28, 1.
  2. II. Subst.: thērĭăca, ae, or -ē, ēs, f., an antidote against the bite of serpents, or against poison in gen., Plin. 20, 24, 100, § 264; 29, 1, 8, § 24; Scrib. Comp. 163; Tert. Anim. 24; Hier. adv. Jovin. 2, 6.