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Definition of Immunizing agent
1. Noun. Any substance or organism that provokes an immune response (produces immunity) when introduced into the body. 
Exact synonyms: Immunogen
Specialized synonyms: Vaccine, Vaccinum, Toxin Antitoxin
Generic synonyms: Antigen
Specialized synonyms: Vaccine, Vaccinum, Toxin Antitoxin
Generic synonyms: Antigen



