chemist vs PCP

chemist and PCP both are nouns.

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

As nouns, PCP is a hypernym of chemist; that is, PCP is a word with a broader meaning than chemist:

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

Other hypernyms of chemist include caregiver, health care provider, health professional, primary care provider.

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