In a sense, the Sierra Leone tribunal needed a mercurial “supermodel.”
Like the mercurial McCain, Romney has run an erratic campaign, filled with unforced errors by the candidate himself.
"Father Gary" didn't grow up with a mercurial mortician who embalmed his mother, either.
He was a capricious and mercurial student, hugely talented but hugely undisciplined.
Since the recession, a mercurial job market has made it difficult for many vets to find steady employment.
When this prescription had produced a little ptyalism the mercurial was omitted and the squill and digitalis continued.
Of a fiery, mercurial disposition, his temper flew in a moment.
In making such vessels a mercurial vacuum has been found very satisfactory.
The champagne was bubbling trickily in the veins of the mercurial statesmen.
The mercurial steam-gauge, already described, was also used as an additional security.
late 14c., "pertaining to the planet Mercury" (see Mercury). Meaning "sprightly, volatile, quick" (1590s) is from supposed qualities of those born under the planet Mercury (they also are the qualities of the god Mercury), probably also partly by association with the qualities of quicksilver. A variant in this sense was mercurious (1590s). Related: Mercurially; mercuriality.
mercurial mer·cu·ri·al (mər-kyur'ē-əl)
Containing or caused by the action of the element mercury. n.
A pharmacological or chemical preparation containing mercury.