immune reaction

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 (synset 100862112)
    referred to in:
    • bacteria, bacterium - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
    • fungus - an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia
    is a type of: reaction, response - a bodily process occurring due to the effect of some antecedent stimulus or agent
    subtypes:
    • anamnestic reaction, anamnestic response - renewed rapid production of an antibody on the second (or subsequent) encounter with the same antigen
    • humoral immune response - an immune response (chiefly against bacterial invasion) that is mediated by B cells
    • cell-mediated immune response - an immune response (chiefly against viral or fungal invasions or transplanted tissue) that involves T cells
    • complement fixation - an immune response in which an antigen-antibody combination inactivates a complement (so it is unavailable to participate in a second antigen-antibody combination)
    has: complement - one of a series of enzymes in the blood serum that are part of the immune response
    same as: immune response, immunologic response

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