noun \ˈat-ə-pē\
plural at·o·pies

Definition of ATOPY

: a genetic disposition to develop an allergic reaction (as allergic rhinitis, asthma, or atopic dermatitis) and produce elevated levels of IgE upon exposure to an environmental antigen and especially one inhaled or ingested
atop·ic \(ˈ)ā-ˈtäp-ik, -ˈtō-pik\ adjective

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