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Webster’s Dictionary (1828)

98,828 entries. Headwords are matched first, then definition text.

4 words match “POLYSULPHIDE”

POLYSULPHIDE n.
A sulphide having more than one atom of sulphur in the molecule; -- contrasted with monosulphide.
MONOSULPHIDE n.
de containing one atom of sulphur, and analogous to a monoxide; -- contrasted with a Ant: polysulphide; as, galena is a monosulphide.
POLYSULPHURET n.
A polysulphide. [Obsoles.]
ULTRAMARINE n.
ther silica, alumina, soda, and sulphur, thus forming a glass, colored blue by the sodium polysulphides made in the fusion. Also used adjectively. Green ultramarine, a green pigment obtained as a first product in the manufacture of ultramarine, into which it is changed by subsequent treatment. -- Ultramarine ash or as…