- a distilled oil, especially one obtained from plant tissue, as distinguished from glyceride oils by their volatility and failure to saponify.
Origin of volatile oil
First recorded in 1790–1800
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- another name for essential oil
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
- A rapidly evaporating oil of plant derivation, especially an essential oil, that is capable of distillation and that does not leave a stain.ethereal oil
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.