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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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adj. - Of or relating to or produced by the effects of light on chemical systems.

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Usage examples (28)
  • Indicative of the importance of different chemicals interacting to cause smog, is the term photochemical smog.
  • Because this type of smog forms when chemical reactions take place in the presence of sunlight, it is termed photochemical smog.
  • They contribute to the formation of photochemical smog.
  • Elemental fluxes will increase via photochemical pathways.
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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.