Mercurial

Pronunciation

• UK IPA: /məːˈkjʊəɹɪəl/
• US IPA: /mɝˈkjÊŠriÉ™l/, /mɝˈkjÉ”riÉ™l/

Origin

From Anglo-Norman
Old French mercurial, and their source, Latin mercurialis, from Mercurius ("Mercury").

Full definition of mercurial

Noun

1. (obsolete) Any of the plants known as mercury. 13th-17th c.
2. (astrology) Someone born under the influence of Mercury. from 16th c.
3. (now historical) A preparation of mercury, especially as a treatment for syphilis. from 17th c.

Adjective

1. (often capitalized, see Mercurial) Pertaining to the planet Mercury. from 14th c.
2. (often capitalized, see Mercurial) Pertaining to the Roman god Mercury, the god of trade; hence, money-making; crafty.. from 15th c.
• J. Q. Adamsthe mercurial wand of commerce
3. (astrology) Born under the influence of the planet Mercury, and having such characteristics. from 16th c.
4. Of, or pertaining to the element mercury; containing mercury; caused by the action of mercury or quicksilver. from 16th c.
5. Having a volatile or lively character; quick-witted, changeable, animated. from 17th c.
• 1723, Charles Walker, Memoirs of Sally Salisbury, I:From the natural Mercurial Briskness of her Temper, a sedentary Life had ever been her Aversion ....

Derived terms

Related terms

• mercuric, mercury, Mercury