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• sulphur
  sulphur

  noun

  sulfur.
• Sulphur
  Sulphur

  noun

  a city in SW Louisiana.

sulphur

¹ American  

[suhl-fer] / ˈsʌl fər /

noun

1. Chiefly British. sulfur.

2. Also yellow with a greenish tinge; lemon color.

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Sulphur ² American  

[suhl-fer] / ˈsʌl fər /

noun

1. a city in SW Louisiana.

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sulphur British  

/ ˈsʌlfə, sʌlˈfjʊərɪk /

noun

1. 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

   2. ( as modifier )

      sulphur springs

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Other Word Forms

• sulphuric
  adjective

Etymology

Origin of sulphur

Variant of sulfur

Example Sentences

The UN secretary general created the task force in March to spearhead a mechanism to allow fertilisers and related raw materials such as ammonia, sulphur and urea through the strait.

From Barron's • May 11, 2026

Ord Minnett says Lotus’s supplies of acid and sulphur look secure at present, but fuel is more precarious.

From The Wall Street Journal • Mar. 25, 2026

But the MOL refineries lack equipment to refine non-Russian oil, which has a lower sulphur content.

From BBC • Mar. 20, 2026

Charles Goodyear discovered vulcanization when a mixture of natural rubber and sulphur accidentally fell onto a hot surface.

From Science Daily • Mar. 14, 2026

Simply, there are swamps which contain a large percentage of sulphur and other gas bubbles that burst continually into flame.

From "The Princess Bride" by William Goldman