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

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

From BBC

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

From Science Daily

Oil fires can also release sulphur and nitrogen oxides, which can form acids if they dissolve in rainwater, as well as other harmful hydrocarbons, metallic compounds and droplets of oil.

From BBC

The Middle East is also a major source of aluminium, sulphur, which is used to process metals such as copper, as well as ingredients for fertiliser including urea.

From BBC

Activists link the complex and its emissions of particulate matter and sulphur dioxide to an estimated 16,530 premature deaths.

From Barron's