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 (sŭl′fər-əs, -fyər-, sŭl-fyo͝or′əs)
1. Of, relating to, derived from, or containing sulfur, especially with valence 4.
2. Characteristic of or emanating from burning sulfur.
3. also sul·phur·ous Fiery; hellish.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Chemistry) the US preferred spelling of sulphurous
2. (Theology) the US preferred spelling of sulphurous
3. the US preferred spelling of sulphurous
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsʌl fər əs, sʌlˈfyʊər əs)

1. of, pertaining to, or containing sulfur, esp. in the tetravalent state.
2. of the yellow color of sulfur.
[1520–30; < Latin sulfurōsus. See sulfur, -ous]
sul′fur•ous•ly, adv.
sul′fur•ous•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.sulfurous - of or related to or containing sulfur or derived from sulfur
2.sulfurous - harsh or corrosive in tonesulfurous - harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique"
unpleasant - disagreeable to the senses, to the mind, or feelings ; "an unpleasant personality"; "unpleasant repercussions"; "unpleasant odors"
3.sulfurous - characterized by oppressive heat and humidity; "the summer was sultry and oppressive"; "the stifling atmosphere"; "the sulfurous atmosphere preceding a thunderstorm"
hot - used of physical heat; having a high or higher than desirable temperature or giving off heat or feeling or causing a sensation of heat or burning; "hot stove"; "hot water"; "a hot August day"; "a hot stuffy room"; "she's hot and tired"; "a hot forehead"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
[USPRwire, Thu Aug 29 2019] Global Sodium Sulphite Market - An Overview Sodium sulfite is a soluble sodium salt of sulfurous acid.
[ClickPress, Thu Aug 29 2019] Global Sodium Sulphite Market - An Overview Sodium sulfite is a soluble sodium salt of sulfurous acid.
NGDU Yamashneft has been established as an experimental enterprise with the objective of developing the production of hard-to-recover reserves of high viscosity and sulfurous crude oil.
Captains and owners of vessels that burn overly sulfurous fuel in the Asian country's territorial waters could face as long as two years in prison from the start of 2020, according to the Maritime and Port Authority of Singapore.
Overheard from a tour guide, the rising steam actually emits poisonous sulfurous gases, which can render you unconscious if you happen to stand within its 30 meter radius.
The HEO said that currently the yellow cosmos (Cosmos sulfurous) are in full bloom, while the garden cosmos (Cosmos bipinnatus) flowers are in bud, and all will continually come into blossom from now until mid-November.
These sulfurous off-flavors presumably form by whey protein denaturation.
Shippers have also been active in locking in spreads to help with the adoption of scrubbers that allow ships to keep burning more sulfurous fuels.
Combustion of highly sulfurous fuels results in emissions of sulfur dioxide, a major air pollutant.
Tell me, Our Lady, why must I see stars in the green billows, twinkling to harbors safe as shrines, when its just the gouged eyes of angels blinking over sea hillocks with sulfurous peaks, crags that spritz devil's spindrift, wavelets sharp as my machete that cut black cane in Camaguey,, a concentration camp on a bluff, condemned three years for defaming the State.
A lava flood is a "prolonged volcanic eruption in which huge flows of lava engulf the landscape, accompanied by a haze of sulfurous gases," and the massive eruption over 1,000 years ago would have spewed enough lava to cover the entire island nation in a layer 20 centimeters deep.