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n. - A ridge that forms a seam between two parts.

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Usage examples (31)
  • Last year, Siver discovered a new genus of diatom (he has discovered 60 new species over the past 20 years) that sheds light on the origin of the "raphe" -- a slit that...
  • The substance abounds in our bloodstreams, but our brains produce separate supplies via cells known as raphe nuclei.
  • Most antidepressants - including the popular SSRIs - work by increasing the amount of serotonin made by cells-called raphe neurons-deep in the middle of the brain.
  • Most antidepressants - including the popular SSRIs - work by increasing the amount of serotonin made by cells -- called raphe neurons -- deep in the middle of the brain.
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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.