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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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n. - Muscular twitching involving individual muscle tissue acting without coordination.

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Usage examples (35)
  • However, for larger and faster gradients applied to the thorax, induced cardiac fibrillation is a real and serious danger.
  • That is called fibrillation, and it is fatal unless promptly treated.
  • Atrial fibrillation occurs when the upper chambers of the heart quiver instead of beating properly.
  • Chronic atrial fibrillation occurs when the irregular heartbeat does not resolve on its own and requires treatment.
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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.