anaphylactic shock
an·a·phy·lac·tic shock / ˌænəfəlæktɪk ˈʃɑk ; ˌænəfəlæktɪk ˈʃɔk /noun Umedical
1. a very sudden serious physical reaction that is caused by an ALLERGY to something such as nuts, eggs, or the STING of some insects. The reaction causes shock, breathing difficulties, and sometimes death.变应性休克，过敏性休克〔这种过敏反应导致休克、呼吸困难，有时会致死〕