nalidixic acid

American

[ney-li-dik-sik, ney-] / ˈneɪ lɪˈdɪk sɪk, ˌneɪ- /

noun

Pharmacology.

a substance, C 1 2 H 1 2 N 2 O 3 , that has antibacterial activity against many susceptible Gram-negative organisms, especially used in the treatment of urinary tract infections.

Etymology

Origin of nalidixic acid

1960–65; by shortening and rearrangement of naphthyridine and carboxylic acid, components of its chemical name

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

However, 50 percent of infections resistant to the fluoroquinolone drug nalidixic acid were caused by Salmonella enteritidis, the most common salmonella type.

From US News

Resistance to nalidixic acid -- used in laboratory testing for resistance -- is related to decreased susceptibility to a widely used fluoroquinolone drug ciprofloxacin, the CDC said in its release.

From US News

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023