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cephalexin

[ sef-uh-lek-sin ]

noun

, Pharmacology.
  1. an oral, antimicrobial drug, C 16 H 7 N 3 O 4 S, used in treating minor respiratory and urinary tract infections and as a backup or alternative to penicillin treatment.


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Word History and Origins

Origin of cephalexin1

1965–70; cephal(osporin) + -ex- of unclear derivation + -in 2

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cephalatecephalic