n. any reaction by the immune system and how the body identifies and defends itself against bacteria and viruses or substances that seem foreign and noxious, integrated physical response to an antigen

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Noun
1. a bodily defense reaction that recognizes an invading substance (an antigen: such as a virus or fungus or bacteria or transplanted organ) and produces antibodies specific against that antigen
(synonym) immune reaction, immunologic response
(hypernym) reaction, response
(hyponym) anamnestic response, anamnestic reaction
(part-meronym) complement
(classification) fungus

n. imunitní reakce

Any reponse by the immune system.