Sulphureous \Sul*phu"re*ous\, a. [L. sulphureus, sulfureus.]
Consisting of sulphur; having the qualities of sulphur, or
brimstone; impregnated with sulphur.
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Her snakes united, sulphureous waters drink. --Pope.
[1913 Webster] -- {Sul*phu"re*ous*ly}, adv. --
{Sul*phu"re*ous*ness}, n.
[1913 Webster]