Mercurialist \Mer*cu"ri*al*ist\, n.

1. One under the influence of Mercury; one resembling Mercury in character. [1913 Webster]

2. (Med.) A physician who uses much mercury, in any of its forms, in his practice. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Mercurialist \Mer*cu"ri*al*ist\, n.

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.

Source: Webster's Revised Unabridged Dictionary (1913)