(noun) a volatile substance; a substance that changes readily from solid or liquid to a vapor; "it was heated to evaporate the volatiles"

(adjective satellite) tending to vary often or widely; "volatile stocks"; "volatile emotions"

(adjective satellite) marked by erratic changeableness in affections or attachments; "fickle friends"; "a flirt's volatile affections"

(adjective satellite) liable to lead to sudden change or violence; "an explosive issue"; "a volatile situation with troops and rioters eager for a confrontation"

(adjective) evaporating readily at normal temperatures and pressures; "volatile oils"; "volatile solvents"

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