1. A crystalline penicillin similar in action to penicillin G but more resistant to the action of gastric acids
   - penicillin V

Type of: penicillin

• unflustered
• unfocused
• unfocussed
• unfold
• unfolding
• unforbearing
• unforced
• unforceful
• unforeseeable
• unforeseen
• unforesightful
• unforested
• unforethoughtful
• unforfeitable
• unforgettable
• unforgettably
• unforgivable
• unforgivably
• unforgiving
• unforgivingly
• unformatted capacity
• unformed
• unforthcoming
• unfortunate
• unfortunate person