Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An antibody found in the blood of individuals having a genetic predisposition to allergies.
  • noun A substance present in the blood of individuals having a positive serological test for syphilis.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an immunoglobulin E that is formed as an antibody against allergens (such as pollen); attaches to cell membranes causing the release of histamine and other substances responsible for the local inflammation characteristic of an allergy

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[reag(ent) + –in.]

Examples

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.