PCT, P.C.T. or pct may refer to:
== Math, science and technology == pct, an abbreviation for "%" (percentage) PCT theorem, on parity, charge and time inversions Pentachlorotoluene, an aromatic chemical compound Perceptual control theory, a model of behavior Personal Communication Telephone, a mobile telephone service Polychlorinated terphenyl, an industrial chemical Polycyclohexylenedimethylene terephthalate, a thermoplastic polyester Private Communications Technology, an obsolete Internet security protocol Programmable communicating thermostat, California, US term Projected capacitive touchscreen, a type of touchscreen technology
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).