n.
Pronunciation: ' a-t ə -p ē
Function: noun
Etymology: Greek atopia uncommonness, from atopos out of the way, uncommon, from a- + topos place
Date: 1923
: a prob. 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 - ' tä-pik, - ' t ō - \ adjective