D defs.my
Entry 2 senses Webster, 1913

Sulphite

· Sul·phite · IPA
01 n. A salt of sulphurous acid; -- called also sulfite.
  1. 1.
    A salt of sulphurous acid; -- called also sulfite.(Chem.) Also: sulfite
  2. 2.
    A person who is spontaneous and original in his habits of thought and conversation.[Archaic Slang]
    “A sulphite is a person who does his own thinking, he is a person who has surprises up his sleeve. He is explosive.” — Gelett Burgess.