English edit

 
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Etymology edit

From cephal(osporanic acid).

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “Is the latter part alexin? (so the former would be cef- not cefalo-)”)

Noun edit

cefalexin (uncountable)

  1. (pharmacology) A particular oral cephalosporin antibiotic.