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cephalexin

[sef-uh-lek-sin]
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noun Pharmacology.
  1. an oral, antimicrobial drug, C16H7N3O4S, used in treating minor respiratory and urinary tract infections and as a backup or alternative to penicillin treatment.

Origin of cephalexin

1965–70; cephal(osporin) + -ex- of unclear derivation + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
cephalexin in Medicine

cephalexin

(sĕf′ə-lĕksĭn)
n.
  1. A semisynthetic cephalosporin antibiotic used especially in the treatment of respiratory and urinary tract infections.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.