| 单词 | alkali |
| 释义 | alkali (once / 2452 pages) n WORD FAMILY alkali: alkalies, alkalify, alkalis, alkalise, alkalize+/alkalify: alkalified/alkalise: alkaliser/alkalize: alkalized, alkalizer, alkalizing/alkalizer: alkalizers USAGE EXAMPLESThe bridge, built in 1969, was damaged by alkali silica reaction, more commonly known as "concrete cancer". BBC(May 16, 2016) "These protesters come from different political backgrounds and their demands are very simple and legitimate," said Alkali Conteh of Gambia Democracy Action Group. US News(Apr 16, 2016) Nevada Energy Metals is looking at Alkali Lake, roughly 7 miles away. Washington Times(Apr 15, 2016) 1n any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water Syn|Hypo|Hyper base pyridine a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal purinea colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances purineany of several bases that are derivatives of purine glyoxaline, imidazole, iminazolean organic base C3H4N2; a histamine inhibitor cyanuramide, melaminea white crystalline organic base; used mainly in making melamine resins pyrimidineany of several basic compounds derived from pyrimidine A, adenine(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA C, cytosinea base found in DNA and RNA and derived from pyrimidine; pairs with guanine G, guaninea purine base found in DNA and RNA; pairs with cytosine T, thyminea base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine triphosphopyridinea pyridine ring with three phosphorus groups chemical compound, compound (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight 2n a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture Hyper salt a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal) |
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