(slang) The drug phencyclidine (PCP).

(physics) A pair of electrons (or other fermions), of opposite spin, whose theorised behaviour is the basis of the BCS theory of superconductivity.

A chemical compound, chemical formula Eu(OCC(CH₃)₃CHCOCF₂CF₂CF₃)₃, used in NMR spectroscopy.

Archaic form of caribou.