Sulphur base

(Chem.) an alkaline sulphide capable of acting as a base in the formation of sulphur salts according to the old dual theory of salts.

See also: Sulphur

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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Tropical Key M and Tropical Key MG offer flavourists a choice of starting points, depending on the variety they wish to imitate; Tropical Key MG comprises enhanced green top notes., while Tropical Key M delivers stronger sulphur base notes.
"The project will benefit from the increasing demand across the world for low sulphur base oils in the production of lubricants."
He said he 'healed himself' with pills that had a sulphur base. His knuckles remained gnarled, but he said in 1999 that the pain was gone.