[ suhl-fyoor-uhs, suhl-fer- ]

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

  2. of the yellow color of sulfur.

Origin of sulfurous

From the Latin word sulfurōsus, dating back to 1520–30. See sulfur, -ous

Other words from sulfurous

  • sul·fu·rous·ly, adverb
  • sul·fu·rous·ness, noun
  • non·sul·fur·ous, adjective

Words Nearby sulfurous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use sulfurous in a sentence

Scientific definitions for 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.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.