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sulfurous

[suhl-fyoo r-uh s, suhl-fer-]
adjective
  1. of, relating to, or containing sulfur, especially in the tetravalent state.
  2. of the yellow color of sulfur.
  3. sulphurous(defs 2, 3).
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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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for sulfurous

adj.

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

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adj.

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.).

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Online Etymology Dictionary, © 2010 Douglas Harper

sulfurous in Medicine

sulfurous

(sŭlfər-əs, -fyər-, sŭl-fyurəs)
adj.
  1. Of, relating to, derived from, or containing sulfur, especially with valence 4.
  2. Characteristic of or emanating from burning sulfur.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

sulfurous in Science

sulfurous

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