- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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.