Sulfur-trioxide
noun, Chemistry.
1.
an irritant, corrosive, low-melting solid, SO 3 , obtained by the oxidation of sulfur dioxide, used as an intermediate in the manufacture of sulfuric acid.
sulfur trioxide
A colorless, highly reactive, corrosive compound that exists either as a liquid or as a solid. As a solid, it exists in three forms that may coexist in a given sample. Sulfur trioxide is used as an intermediate in manufacturing sulfuric acid, and in making sulfonates from organic compounds. Chemical formula: SO3.
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adjective, Chemistry. 1. containing the sulfuryl group, SO 2 , as sulfuryl chloride; sulfonyl. sulfuryl sul·fur·yl (sŭl’fə-rĭl’, -fyə-) n. See sulfonyl.
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or sulfonyl chloride noun, Chemistry. 1. a colorless liquid, SO 2 Cl 2 , having a very pungent odor and corrosive to the skin and mucous membranes: used as a chlorinating or sulfonating agent.
- Sulfuryl-group
noun, Chemistry. 1. the bivalent group, SO 2 , derived from sulfuric acid.
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noun, Pharmacology. 1. a yellow crystalline substance, C 2 0 H 1 7 FO 3 S, that is used as an analgesic, antipyretic, and anti-inflammatory in the treatment of certain rheumatic diseases. sulindac su·lin·dac (sə-lĭn’dāk) n. An anti-inflammatory nonsteroid agent with analgesic and antipyretic actions.
- Sulk
verb (used without object) 1. to remain silent or hold oneself aloof in a sullen, ill-humored, or offended mood: Promise me that you won’t sulk if I want to leave the party early. noun 2. a state or fit of sulking. 3. sulks, ill-humor shown by sulking: to be in the sulks. 4. Also, sulker. […]