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