A drug used as an anesthetic by veterinarians; illicitly taken (originally in the form of powder or `dust') for its effects as a hallucinogen.
A person who helps in identifying or preventing or treating illness or disability.
A lung infection caused by Pneumocystis jiroveci, a fungus related to Pneumocystis carinii (the species for which PCP was originally named).\ (source: AIDSinfo)
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