The Collaborative International Dictionary
Sulphureous \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.
[1913 Webster] -- Sul*phu"re*ous*ly, adv. --
Sul*phu"re*ous*ness, n.
Douglas Harper's Etymology Dictionary
1550s, from Latin sulphureus "of sulfur," from sulphur (see sulfur).
Wiktionary
a. (context British spelling now rare English) sulphurous. alt. (context British spelling now rare English) sulphurous.
Usage examples of "sulphureous".
For, it is sometimes developed in the form of a saline efflorescence,--or is a real mineral of sulphureous color--chosen for this purpose.
The sea rose in precipitous mountain-masses, and anon wallowed in black abysmal chasms,--the clouds flew in a fierce rack overhead like the forms of huge witches astride on eagle-shaped monsters,--and with it all there was a close heat in the air, notwithstanding the tearing wind,--a heat and a sulphureous smell, suggestive of some pent-up hellish fire that but waited its opportunity to break forth and consume the land.
Mingling fierce thunders and sulphureous gleams, And smoke which strangled every infant wind That soothed the silver clouds through the deep air.
A red sulphureous tint overspread the long line of clouds, that hung above the western horizon, beneath whose dark skirts the sun looking out, illumined the distant shores of Languedoc, as well as the tufted summits of the nearer woods, and shed a partial gleam on the western waves.