You know what it looks like… but what is it called?TAKE THE QUIZ
: an allergen (such as pollen) that has been chemically modified and is used especially in immunotherapy to treat allergic conditions by lessening the immune response
An allergoid made from ragweed allergen and injected into someone with hay fever could teach ragweed-specific [T helper] cells not to give the "go ahead" signal for a reaction to real ragweed pollen. Johnathan Brostoff and Linda Gamlin, Hay Fever: The Complete Guide …
Note: Allergoids are less likely to bind to the immunoglobulin IgE and cause serious side effects during treatment.
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors