What does "angel dust" mean?

Phencyclidine, a type of dissociative anesthetic.

What is a synonym for "angel dust"?

Common synonyms include: pcp, phencyclidine, phencyclidine hydrochloride.

noun, slang

noun, slang ·Moderate ·College level

Noun

1
Phencyclidine, a type of dissociative anesthetic. slang, uncountable
2
a drug used as an anesthetic by veterinarians; illicitly taken (originally in the form of powder or ‘dust’) for its effects as a hallucinogen wordnet
3
Clenbuterol, a banned drug formerly used in animal feedlots. Ireland, slang, uncountable

First attested in c. 1969 in Rolling Stone magazine.