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Adjacent Words

sulphuretted hydrogen
sulphuric acid
sulphuric anhydride
sulphuric chloranhydride
sulphuric ether
sulphurous acid
sulphurous anhydride
Sulphuryl chloride

Sulphurous definitions

Webster's 1828 Dictionary

SUL'PHUROUS, a. Like sulphur; containing sulphur; also, designating an acid formed by sulphur subsaturated with oxygen. This is called sulphurous acid.

WordNet (r) 3.0 (2005)

1: of or related to or containing sulfur or derived from sulfur [syn: sulfurous, sulphurous]
2: 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" [syn: acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic]
3: characterized by oppressive heat and humidity; "the summer was sultry and oppressive"; "the stifling atmosphere"; "the sulfurous atmosphere preceding a thunderstorm" [syn: sultry, stifling, sulfurous, sulphurous]

Merriam Webster's

adjective see sulfurous

Oxford Reference Dictionary

adj. (US sulfurous) 1 relating to or suggestive of sulphur, esp. in colour. 2 Chem. containing quadrivalent sulphur. Phrases and idioms: sulphurous acid an unstable weak acid used as a reducing and bleaching acid. Etymology: L sulphurosus f. SULPHUR

Webster's 1913 Dictionary

Sulphurous Sul"phur*ous, a. [L. sulphurosus, sulfurosus: cf. F. sulfureux.] 1. Of or pertaining to sulphur. 2. (Chem.) (a) Derived from, or containing, sulphur; specifically, designating those compounds in which the element has a lower valence as contrasted with the sulphuric compounds. (b) Having the characteristic odor of sulphur dioxide, or of hydrogen sulphide, or of other sulphur compounds. Sulphurous acid. (a) Sulphur dioxide. See under Sulphur. [Obs.] (b) An acid, H2SO3, not known in the free state except as a solution of sulphur dioxide in water, but forming a well-known series of salts (the sulphites). Sulphurous anhydride (Chem.), sulphur dioxide. See under Sulphur.

Collin's Cobuild Dictionary

Note: in AM, use 'sulfurous' Sulphurous air or places contain sulphur or smell of sulphur. ...sulphurous volcanic gases. ADJ: usu ADJ n

Soule's Dictionary of English Synonyms

a. Sulphureous, sulphury.

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