Penicillin - Noun
Any of several antibiotics produced naturally by molds of the genus Penicillium and semi-synthetically, having bactericidal properties
Why it is important
Penicillin, a common anti-biotic, is used frequently to treat colds. It and other anti-biotics, Doug contends, have long-term, far reaching side effects. See Also Anti-biotic, Mycotoxin