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WordNet 3.0Copyright Princeton University
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n. - The bivalent radical CH2 derived from a colorless odorless gas used as a fuel

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Usage examples (35)
  • For example, methylene is linear in its ground state but bent in states of higher energy.
  • "It appears they were boiling a chemical called methylene chloride as they normally do as part of their process," he said.
  • "surfactants" called methylene blue active substances in her well water and her pond.
  • Tests have already shown that gold-decorated nanowires can decompose organic molecules such as methylene blue.
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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.