any of three isomeric methyl derivatives of pyridine having the formula C6H7N, obtained from coal tar as a colorless oily liquid with a strong odor.
Origin of picoline
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a liquid derivative of pyridine found in bone oil and coal tar; methylpyridene. Formula: C 5 H 4 N(CH 3)
Word Origin for picoline
C19: from Latin pic-, pix pitch ² + -ol ² + -ine 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