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carcinoembryonic antigen in Medicine

carcinoembryonic antigen

(kär′sə-nō-ĕm′brē-ŏnĭk)
n.
  1. A glycoprotein present in fetal gastrointestinal tissue, generally absent from adult cells with the exception of some carcinomas.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.