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单词	quinolone
释义	quinolone /ˈkwɪnələʊn / noun [mass noun] An antibiotic derived from quinoline and used chiefly against Gram-negative organisms.Because of their extensive gram-negative coverage, quinolone antibiotics were initially used to treat urinary tract infections.... The original quinolone antibiotics included nalidixic acid, cinoxacin and oxolinic acid (no longer available in the United States). Drugs that have been implicated include penicillin, aminopenicillins, sulfonamides, allopurinol, thiazides, quinolones, hydantoins, and propylthiouracil. Origin 1930s: from quin- (in quinoline) + -one.
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