a white corrosive substance existing in three crystalline forms of which the stable (alpha-) form is usually obtained as silky needles. It is produced by the oxidation of sulphur dioxide, and is used in the sulphonation of organic compounds. Formula: SO3 Systematic name sulphur(VI) oxide
- Sulphur tuft
noun 1. a poisonous basidiomycetous fungus, Hypholoma fasciculare, having a sulphurous yellow cap and found in clumps on and around broad-leaved trees
noun 1. (modifier) of, consisting of, or containing the divalent group, =SO2: sulphuryl chloride Also sulphonyl (ˈsʌlfəˌnɪl)
noun, Roman Catholic Church. 1. a member of a society of secular priests founded in France in 1642, engaged chiefly in training men to teach in seminaries.
noun 1. the sovereign of an Islamic country. 2. (often initial capital letter) any of the former sovereigns of Turkey. 3. any absolute ruler or despot. noun 1. the sovereign of a Muslim country, esp of the former Ottoman Empire 2. an arbitrary ruler; despot 3. a small domestic fowl with a white crest and […]