noun
- an antitoxin present in the blood of an animal following repeated injections of venom.
- the antitoxic serum obtained from such blood.
noun
- an antitoxin that counteracts a specific venom, esp snake venom
1894, from anti- + venin, from venom + chemical suffix -in (2). Perhaps immediately from French antivenin.
n.
- An antitoxin active against venom.
- An antitoxin active against the venom of a snake, spider, or other venomous animal or insect.
- An animal serum containing antivenins, used in medicine to treat poisoning caused by animal or insect venom.