Dictionary

cephalexin

noun ceph·a·lex·in \ˌse-fə-ˈlek-sən\

Definition of CEPHALEXIN

:  a semisynthetic cephalosporin C16H17N3O4S with a spectrum of antibiotic activity similar to the penicillins

Origin of CEPHALEXIN

cephalosporin + -ex- (of unknown origin) + 1-in
First Known Use: 1967

cephalexin

noun ceph·a·lex·in \ˌsef-ə-ˈlek-sən\   (Medical Dictionary)

Medical Definition of CEPHALEXIN

:  a semisynthetic cephalosporin C16H17N3O4S with a spectrum of antibiotic activity similar to the penicillins that is often administered in the form of its hydrochloride C16H17N3O4S·HCl

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