immune reaction

immune reaction

n.

The reaction resulting from the recognition and binding of an antigen by its specific antibody or by a previously sensitized lymphocyte. Also called immunoreaction.

Thesaurus

Noun

1.

immune reaction - 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 immune response, immunologic response response, reaction - a bodily process occurring due to the effect of some antecedent stimulus or agent; "a bad reaction to the medicine"; "his responses have slowed with age" 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) 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 complement - one of a series of enzymes in the blood serum that are part of the immune response