| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Immediate-type hypersensitivity | Medicine | A type of hypersensitivity reaction which is mediated by antibodies and which occurs within minutes after exposure to the allergen or antigen in a previously sensitized individual. Source: European Union. (references) | |
| Immediate-type hypersensitivity | Religion | Hypersensitivity tissue reaction occurring within minutes after the interaction of antigen and antibody. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||