Main Entry: at·o·py

Pronunciation: \ˈa-tə-pē\

Function: noun

Etymology: Greek atopia uncommonness, from atopos out of the way, uncommon, from a- + topos place

Date: 1923

: a probably hereditary allergy characterized by symptoms (as asthma, hay fever, or hives) produced upon exposure especially by inhalation to the exciting environmental antigen

— atop·ic \(ˌ)ā-ˈtä-pik, -ˈtō-\ adjective