1. Semisynthetic penicillin (trade names Principen and Polycillin and SK-Ampicillin)
   - ampicillin, Polycillin, SK-Ampicillin

Type of: penicillin

• usualness
• usufruct
• usufructuary
• Usuli
• Usumbura
• usurer
• usurious
• usuriously
• usurp
• usurpation
• usurper
• usury
• ut
• UT1
• Uta
• Uta stansburiana
• Utah
• Utahan
• utahraptor
• UTC
• Ute
• utensil
• uterine
• uterine artery
• uterine cavity