PCP

Short definition from Wiktionary

Noun

1. 1
   Abbreviation of phenylcyclohexylpiperidine, an alternative name for phencyclidine.
2. 2
   Abbreviation of pentachlorophenol.
3. 3
   Initialism of peptidyl carrier protein.
4. 4
   Initialism of probabilistically checkable proof.
5. 5
   Initialism of primary care physician.
6. 6
   Initialism of primary care practitioner.
7. 7
   Abbreviation of pneumocystis pneumonia.
8. 8
   Initialism of personal construct psychology.

Proper noun

1. 1
   Initialism of Portuguese Communist Party.