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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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n. - Passing from a more complex to a simpler biological form; The process of declining from a higher to a lower level of effective power or vitality or essential quality;

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Usage examples (35)
  • Macular degeneration is a disease that gradually destroys sharp, central vision.
  • Age-related macular degeneration is the leading cause of vision loss in adults older than 50.
  • I use the word degeneration in its broadest sense, and intend it to include all kinds of abnormalities.
  • Macular degeneration is the leading cause of vision loss in my age group, and my vision is practically gone.
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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.