[awr-suh-nawl, -nol]
noun Chemistry.
a white, crystalline, water-soluble solid, C 7 H 8 O 2 , 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, orcin [awr-sin] .

1875–80; < Neo-Latin orcin(a) (< Italian orcello orchil, by alteration) + -ol2

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To orcin
World English Dictionary
orcinol or orcin (ˈɔːsɪˌnɒl, ˈɔːsɪn)
a colourless crystalline water-soluble solid that occurs in many lichens and from which the dyes found in litmus are derived. Formula: CH3C6H3(OH)2
[C20: from New Latin orcina, from Italian orcelloorchil]
orcin or orcin
[C20: from New Latin orcina, from Italian orcelloorchil]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature