/
məːˈkjʊərɪəl/
adj.
- subject to sudden changes of mood or mind.
- of or containing the element mercury.
-
(Mercurial)
of the planet Mercury.
n.
a drug containing mercury.
Derivative
- mercuriality
/-ˈalɪti/
n. - mercurially adv.
Etymology
ME: from L. mercurialis ‘relating to the god Mercury’, from Mercurius ‘Mercury’.