semisynthetic

a semisynthetic oral penicillin (trade names Amoxil and Larotid and Polymox and Trimox and Augmentin) used to treat bacterial infections

semisynthetic penicillin (trade names Principen and Polycillin and SK-Ampicillin)

n a broad spectrum semisynthetic antibiotic produced by modifying cephalosporin

addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity

n a semisynthetic analogue of cephalosporin