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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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n. - Any substance (as a toxin or enzyme) that stimulates an immune response in the body.

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Usage examples (39)
  • In non-permissive transformed cells the antigen is a protein of molecular weight of about 94,000 daltons
  • When an antigen is introduced the equilibrium is disturbed.
  • The H antigen is an intermediate stage in the production of the A and B antigens.
  • It was known that antigen is endocytosed with antigen receptors and then degraded.
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We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.