RhymeZone: azithromycin definitions

Definitions of azithromycin:

noun: (pharmacology) A semisynthetic macrolide antibiotic C₃₈H₇₂N₂O₁₂ (trademarks Zithromax, Z-PAK) that is derived from erythromycin and is used especially as an antibacterial agent.

(Definitions from Wiktionary)