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quinolone Line breaks: quin|olone
Pronunciation: /ˈkwɪnələʊn/

Definition of quinolone in English:


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

Definition of quinolone in:
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