Definition of mercurial
- a. - Having the qualities fabled to belong to the god
Mercury; swift; active; sprightly; fickle; volatile; changeable; as, a
mercurial youth; a mercurial temperament.
- a. - Having the form or image of Mercury; -- applied to
ancient guideposts.
- a. - Of or pertaining to Mercury as the god of trade; hence,
money-making; crafty.
- a. - Of or pertaining to, or containing, mercury; as,
mercurial preparations, barometer. See Mercury, 2.
- a. - Caused by the use of mercury; as, mercurial sore mouth.
- n. - A person having mercurial qualities.
- n. - A preparation containing mercury.