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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

molecule capable of multiplying rapidly and harming the immune system

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Usage examples (35)
  • Astaxanthin is also a powerful free-radical fighter.
  • All this happens much more quietly than in free-radical reactions.
  • In fact, oxidized vitamin C may actually cause free-radical formation.
  • These compounds generate massive free-radical damage to cells throughout the body.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
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.