• synonyms


[awr-suh-nawl, -nol]
noun Chemistry.
  1. a white, crystalline, water-soluble solid, C7H8O2, sweet but unpleasant in taste, that reddens on exposure to air: obtained from many lichens or produced synthetically and used chiefly as a reagent for certain carbohydrates.
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Also or·cin [awr-sin] /ˈɔr sɪn/.

Origin of orcinol

1875–80; < New Latin orcin(a) (< Italian orcello orchil, by alteration) + -ol2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for orcin

Historical Examples of orcin

  • In both cases, if the ebullition is too long continued, the new acid is wholly or in part converted into orcin.

    Cooley's Practical Receipts, Volume II

    Arnold Cooley

British Dictionary definitions for orcin


orcin (ˈɔːsɪn)

  1. a colourless crystalline water-soluble solid that occurs in many lichens and from which the dyes found in litmus are derived. Formula: CH 3 C 6 H 3 (OH) 2
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Word Origin for orcinol

C20: from New Latin orcina, from Italian orcello orchil
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012