a serious medical reaction caused by someone eating or touching something that they are allergic to (=something that makes them ill). Common causes are nuts, eggs, and drugs such as penicillin.
Synonyms and related words
Specific medical conditions
acidity
acne
ADD
Synonyms and related words
Allergies and allergy
allergen
allergic
allergy
anaphylactic shock
noun uncountable medical
US /ˌænəfɪˈlæktɪk ʃɒk/
DEFINITIONS1
1
a serious medical reaction caused by someone eating or touching something that they are allergic to (=something that makes them sick). Common causes are nuts, eggs, and drugs such as penicillin.