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common antigen in Medicine

common antigen

(kŏmən)
n.
  1. A hapten that occurs in the bacterial cell wall and is shared by most gram-negative bacteria.heterogenic enterobacterial antigen
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.