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nitrophenol

[nahy-truh-fee-nawl, -nol]
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noun Chemistry.
  1. any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.
  2. any of three water-soluble, crystalline isomers of such a derivative, having the formula C6H5NO3, occurring in yellow (ortho-nitrophenol), pale-yellow (meta-nitrophenol), and yellowish (para-nitrophenol) solids, used chiefly as intermediates in organic synthesis and as indicators.
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Origin of nitrophenol

First recorded in 1850–55; nitro- + phenol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018