cephalexin

[ sef-uh-lek-sin ]
/ ˌsɛf əˈlɛk sɪn /

noun Pharmacology.

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

Medical definitions for cephalexin

cephalexin
[ sĕf′ə-lĕksĭn ]

n.

A semisynthetic cephalosporin antibiotic used especially in the treatment of respiratory and urinary tract infections.