au·​to·​re·​ac·​tive ˌȯt-ō-rē-ˈak-tiv How to pronounce autoreactive (audio)
: produced by an organism and acting against its own cells or tissues
It has been presumed that autoreactive B cells, like normal B cells, accumulate in the follicles of lymphoid tissues after encountering antigen and begin to proliferate, producing high-affinity autoantibodies and forming germinal centers. Yang-Xin Fu and Ursula Storb, Science
autoreactivity noun
plural autoreactivities
At the same time, autoreactivity of B cells and T cells is present in all normal persons, and a complex set of regulatory mechanisms is required to prevent overt destruction of tissue through autoimmunity. Peter K. Gregersen, The New England Journal of Medicine

Dictionary Entries Near autoreactive

Cite this Entry

“Autoreactive.” Medical Dictionary, Merriam-Webster, Accessed 26 Nov. 2022.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Universal Daily Crossword

A daily challenge for crossword fanatics.