Also known as: pen.
PEN has various meanings in the Science category. Discover the full forms, definitions, and usage contexts of PEN in Science.
Penicillin is a group of antibiotics derived from Penicillium fungi, including penicillin G (intravenous use), penicillin V (oral use), procaine penicillin, and benzathine penicillin (intramuscular use).
SciencePhysiography is another word for Physical geography. Physical geography basically means the study of nature and climate. This subject is taught in high schools and colleges.
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