- 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.
Also or·cin [awr-sin] /ˈɔr sɪn/.
Origin of orcinol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for 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
- 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
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