[suhl-fyoo r-uh s, suhl-fer-]


of, relating to, or containing sulfur, especially in the tetravalent state.
of the yellow color of sulfur.

Origin of sulfurous

From the Latin word sulfurōsus, dating back to 1520–30. See sulfur, -ous
Related formssul·fu·rous·ly, adverbsul·fu·rous·ness, nounnon·sul·fur·ous, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sulfurous

Contemporary Examples of sulfurous

Historical Examples of sulfurous

Word Origin and History for sulfurous

also sulphurous, 1530s, from Latin sulphurosus or a native formation from sulfur + -ous. Related: Sulfurously; sulphurously.


also sulfurous, 1520s, "of the nature of brimstone," from sulfur + -ous. Hence figurative use with suggestions of hellfire (c.1600). Scientific chemistry sense is from 1790. Earlier in the "brimstone-like" sense was sulphurious (late 15c.).

Online Etymology Dictionary, © 2010 Douglas Harper

sulfurous in Medicine


[sŭlfər-əs, -fyər-, sŭl-fyurəs]


Of, relating to, derived from, or containing sulfur, especially with valence 4.
Characteristic of or emanating from burning sulfur.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

sulfurous in Science


[sŭlfər-əs, sŭl-fyurəs]

Containing sulfur, especially sulfur with a valence of 4 or 3. Compare sulfuric.
Characteristic of or emanating from burning sulfur.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.