Akademik

atopen
An old term to denote the excitant causing any form of atopy.

* * *

ato·pen 'at-ə-pən, -.pen n an agent inducing atopic allergy

* * *

n.
any substance responsible for atopy.

* * *

at·o·pen (atґə-pen) the allergen involved in an atopic disorder.

Medical dictionary. 2011.