mercurial

IPA: mɝkjˈʊriʌɫ

(obsolete) Any of the plants known as mercury, especially the annual mercury or French mercury (Mercurialis annua).
(astrology) A person born under the influence of the planet Mercury; hence, a person having an animated, lively, quick-witted or volatile character.
(chemistry) A chemical compound containing mercury.
(pharmacology, historical) A preparation of mercury, especially as a treatment for syphilis.

(comparable) Having a lively or volatile character; animated, changeable, quick-witted.
(not comparable, astrology) Pertaining to the astrological influence of the planet Mercury; having the characteristics of a person under such influence (see adjective sense 1).
(not comparable, astronomy) Pertaining to the planet Mercury.
(not comparable, chemistry) Of or pertaining to the element mercury or quicksilver; containing mercury.
(not comparable, medicine) Caused by the action of mercury or a mercury compound.
(not comparable, Roman mythology) Pertaining to Mercury, the Roman god of, among other things, commerce, financial gain, communication, and thieves and trickery; hence (comparable), money-making; crafty.
Alternative letter-case form of mercurial. [(comparable) Having a lively or volatile character; animated, changeable, quick-witted.]

Examples of "mercurial" in Sentences