Definify.com
Webster 1913 Edition
Mercurialist
Mer-cu′ri-al-ist
,Noun.
1.
One under the influence of Mercury; one resembling Mercury in character.
2.
(Med.)
A physician who uses much mercury, in any of its forms, in his practice.
Webster 1828 Edition
Mercurialist
MERCU'RIALIST
,Noun.