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[suhl-fer] /ˈsʌl fər/
Chiefly British, sulfur (def 1).
Also, sulfur. yellow with a greenish tinge; lemon color.
Origin of sulphur
variant of sulfur


[suhl-fer] /ˈsʌl fər/
a city in SW Louisiana. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for sulphur
  • Mineral pools on the lake are purported to have healing properties because of their high sulphur content.
  • Actually silver tarnishes when exposed to industrial pollutants such as ozone and sulphur.
  • Extracting sulphur all day is a brutal occupation.
  • Radioactive sulphur signal adds to evidence of catastrophe.
  • There is already a natural process that removes sulphur dioxide and nitrogen dioxide pollution from the atmosphere.
  • The addition of low sulphur fuel and upcoming catalytic converter technology make diesel the way to go.
  • Some geo-engineers want to spray sulphur dioxide in the high atmosphere to fight off climate change.
  • They read, and they find nitre and charcoal and sulphur for powder.
  • At the same time, the emission of toxic sulphur dioxide had decreased markedly.
  • Clean coal technology researched during the seventies and eighties focused on reducing acid rain reduction by removing sulphur.
British Dictionary definitions for sulphur


  1. an allotropic nonmetallic element, occurring free in volcanic regions and in combined state in gypsum, pyrite, and galena. The stable yellow rhombic form converts on heating to monoclinic needles. It is used in the production of sulphuric acid, in the vulcanization of rubber, and in fungicides. Symbol: S; atomic no: 16; atomic wt: 32.066; valency: 2, 4, or 6; relative density: 2.07 (rhombic), 1.957 (monoclinic); melting pt: 115.22°C (rhombic), 119.0°C (monoclinic); boiling pt: 444.674°C related adjective thionic
  2. (as modifier): sulphur springs
Derived Forms
sulphuric, (US) sulfuric (sʌlˈfjʊərɪk) adjective
Word Origin
C14 soufre, from Old French, from Latin sulfur
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for sulphur

see sulfur. The form prefered in Britain; the spelling's suggestion of a Greek origin is misleading.

Online Etymology Dictionary, © 2010 Douglas Harper
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sulphur in Science
sulfur also sulphur
Symbol S
A pale-yellow, brittle nonmetallic element that occurs widely in nature, especially in volcanic deposits, minerals, natural gas, and petroleum. It is used to make gunpowder and fertilizer, to vulcanize rubber, and to produce sulfuric acid. Atomic number 16; atomic weight 32.066; melting point (rhombic) 112.8°C; (monoclinic) 119.0°C; boiling point 444.6°C; specific gravity (rhombic) 2.07; (monoclinic) 1.957; valence 2, 4, 6. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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