P3E1N1I1C3I1L1L1I1N1S1
15 points
PENICILLINS is validvalid
PENICILLIN, [n]
PENICILLIN, any of a group of substances that stop the growth of bacteria, extracted from moulds, especially from the fungus Penicillium [n]
PENICILLIN, [n]
PENICILLIN, any of a group of substances that stop the growth of bacteria, extracted from moulds, especially from the fungus Penicillium [n]