an·ti·an·a·phy·lax·is noun \-ˌan-ə-fə-ˈlak-səs\
plural an·ti·an·a·phy·lax·es \-ˌsēz\
: a condition in which an anaphylactic reaction is not obtained because of the presence of free antibodies in the blood
: the state of desensitization to an antigen
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