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cephalexin

noun
ceph·​a·​lex·​in | \ ˌse-fə-ˈlek-sən How to pronounce cephalexin (audio) \

Definition of cephalexin

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

Examples of cephalexin in a Sentence

Recent Examples on the Web

 The most common organism responsible for perichondritis is a bug called Pseudomonas aeruginosa, a virulent pathogen with the ability to resist many antibiotics, including the cephalexin prescribed by Jessica’s pediatrician. — Rick Pescatore, Philly.com, "Medical mystery: A teen's ear piercing goes awry," 20 Oct. 2017 Jessica’s pediatrician diagnosed a mild case of a bacterial skin infection known as cellulitis, and gave her a prescription for an antibiotic, cephalexin, along with the standard precautions. — Rick Pescatore, Philly.com, "Medical mystery: A teen's ear piercing goes awry," 20 Oct. 2017

First Known Use of cephalexin

1967, in the meaning defined above

History and Etymology for cephalexin

cephalosporin + -ex- (of unknown origin) + -in entry 1

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More Definitions for cephalexin

cephalexin

noun
ceph·​a·​lex·​in | \ ˌsef-ə-ˈlek-sən How to pronounce cephalexin (audio) \

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 or monohydrate C16H17N3O4S·H2O

Note: Cephalexin is marketed under the trademark Keflex.

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