Definition of "volatile oil" []

• A rapidly evaporating oil, especially an essential oil, that does not leave a stain. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Despite the presence of a number of oil exporters in APEC, not least this year's Chair, Brunei Darussalam, APEC Ministers agreed that volatile oil prices are not in the best interests of either consumers or producers and called for an increase in supply to meet current demand."
• "(Genesis 37: 25) was probably ladalzum, a highly-fragrant resin and volatile oil used as a cosmetic, and stimulative as a medicine."