atopic
adjective/eɪˈtɒpɪk/
/eɪˈtɑːpɪk/
(medical)- relating to a form of allergy where there is a reaction in a part of the body that does not have direct contact with the thing causing the allergy
特应性的，异位的（指过敏部位并非直接接触过敏原） Word Originearly 20th cent.: from Greek atopia ‘unusualness’, from atopos ‘unusual’, from a- ‘without’ + topos ‘place’.