Antivenin \An`ti*ve"nin\, n. [Written also {antivenen},
{antivenine}.] [Pref. anti- + L. venenum poison.] (Physiol.
Chem.)
The serum of blood rendered antitoxic to a venom by repeated
injections of small doses of the venom; also, the component
of such a serum which is antitoxic to the venom.
[Webster 1913 Suppl. +PJC]