During these volatile and violent days in Egypt, Coptic Christians have found themselves increasingly under threat.
Based on past experiments and experience, he said, these volatile byproducts pose the real threat to human health.
Now we will see how Obama manages an ugly and dangerous challenge in the most volatile place in the world.
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).
volatile vol·a·tile (vŏl'ə-tl, -tīl')
Evaporating readily at normal temperatures and pressures.
That can be readily vaporized.
Tending to violence; explosive, as of behavior.