Related to Hiconcil:Moxilen,Ampicillin Trihydrate,Amoxidal a·mox·i·cil·lin (ə-mŏk′sĭ-sĭl′ĭn) n. A semisynthetic penicillin, C16H19N3O5S, having an antibacterial spectrum of action similar to that of ampicillin. [am(ino)-+ (hydr)ox(y) +(pen)icillin.] ...