volatile

[ vol-uh-tl, -til or, esp. British, -tahyl ]
/ ˈvɒl ə tl, -tɪl or, esp. British, -ˌtaɪl /

adjective

noun

a volatile substance, as a gas or solvent.

Origin of volatile

1250–1300; Middle English < Latin volātilis, equivalent to volāt(us) (past participle of volāre to fly; see -ate1) + -ilis -ile
Related formsvol·a·til·i·ty [vol-uh-til-i-tee] /ˌvɒl əˈtɪl ɪ ti/, vol·a·tile·ness, nounnon·vol·a·til·i·ty, nounsem·i·vol·a·tile, adjectiveun·vol·a·tile, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for volatility

British Dictionary definitions for volatility

volatile

/ (ˈvɒləˌtaɪl) /

adjective

noun

a volatile substance
rare a winged creature
Derived Formsvolatileness or volatility (ˌvɒləˈtɪlɪtɪ), noun

Word Origin for volatile

C17: from Latin volātīlis flying, from volāre to fly
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

Word Origin and History for volatility

volatile


adj.

1590s "fine or light," also "evaporating rapidly" (c.1600), from Middle French volatile, from Latin volatilis "fleeting, transitory, flying," from past participle stem of volare "to fly" (see volant). Sense of "readily changing, fickle" is first recorded 1640s. Volatiles in Middle English meant "birds, butterflies, and other winged creatures" (c.1300).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for volatility

volatile

[ vŏlə-tl, -tīl′ ]

adj.

Evaporating readily at normal temperatures and pressures.
That can be readily vaporized.
Tending to violence; explosive, as of behavior.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for volatility

volatile

[ vŏlə-tl ]

Changing easily from liquid to vapor at normal temperatures and pressures. Essential oils used in perfumes are highly volatile.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.