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guaiacol

American  
[gwahy-uh-kohl, -kawl] / ˈgwaɪ əˌkoʊl, -ˌkɔl /

noun

Pharmacology.
  1. a slightly yellowish, aromatic, crystalline substance, C 7 H 8 O 2 , resembling creosote and usually obtained from guaiacum resin: used in medicine chiefly as an expectorant and local anesthetic.


guaiacol British  
/ ˈɡwaɪəˌkɒl /

noun

  1. a yellowish oily creosote-like liquid extracted from guaiacum resin and hardwood tar, used medicinally as an expectorant. Formula: C 7 H 8 O 2

"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

Etymology

Origin of guaiacol

First recorded in 1860–65; guaiac(um) + -ol 2