atopy — English Dictionary

Noun

1. A hereditary disorder marked by the tendency to develop localized immediate hypersensitivity reactions to allergens such as pollen, food etc and is manifested by hay fever, asthma, or similar allergic conditions; generally considered to be caused by the interaction of environmental and genetic factors.

   Usage

   • Countable
   • Uncountable

   Examples

   Whatever factor is invoked to explain the increase in asthma must also be capable of explaining other outbreaks of atopy.

2. A person suffering from atopic syndrome; a case of atopy.

   Usage

   • Countable
   • Uncountable

Noun

1. an allergic reaction that becomes apparent in a sensitized person only minutes after contact

   Synonyms

   immediate allergyatopic allergytype I allergic reaction

   Broader terms

   allergyallergic reaction