PCP vs chemist

PCP and chemist both are nouns.

Word	Noun	Adjective	Verb	Adverb
PCP	Yes	No	No	No
chemist	Yes	No	No	No

As nouns, chemist is a hyponym of PCP; that is, chemist is a word with a more specific, narrower meaning than PCP:

PCP: a person who helps in identifying or preventing or treating illness or disability
chemist: a health professional trained in the art of preparing and dispensing drugs

PCP (noun)	chemist (noun)
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 scientist who specializes in chemistry
a person who helps in identifying or preventing or treating illness or disability	a health professional trained in the art of preparing and dispensing drugs