Main Entry: at·o·py

Pronunciation: \ˈat-ə-pē\

Function: noun

Inflected Form(s): plural at·o·pies

: 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