Definition of quinolone in English:


Line breaks: quin|olone
Pronunciation: /ˈkwɪnələʊn


[mass noun]
  • An antibiotic derived from quinoline and used chiefly against Gram-negative organisms.
    More example sentences
    • 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.


1930s: from quin- (in quinoline) + -one.

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