1) Ectopic 2) Like a hereditary condition 3) Of or pertaining to atopy 
(a neg. + Gr. topos place) pertaining to an atopen or to atopy; allergic.
A tendency to allergies which often runs in families
A hereditary tendency to develop allergies (allergic rhinitis, allergic asthma, eczema).
<dermatology> Pertaining to an atopen or to atopy, allergic. ... Origin: Gr. Topos = place ... (16 Dec 1997) ... 
(a-top´ik) (ә-top´ik) displaced; ectopic. pertaining to atopy.
When an antibody present in the skin makes someone more likely to experience allergic reactions.
Type: Term Pronunciation: ă-top′ik Definitions: 1. Relating to or marked by atopy. 2. Allergic.
Atopic: Prone to allergies or characterized by allergy.
A type of inherited allergic response involving elevated immunoglobulin E.