noun

• (law enforcement) Initialism of police department. [(law enforcement) Police force, especially a local or regional branch of a national police force.]
• (electronics) Initialism of phase detector.
• Initialism of public domain. [(also attributively) Often preceded by in the.]
• Initialism of peritoneal dialysis. [(medicine) A treatment for patients with severe chronic kidney disease in which fluids are exchanged from the blood in the patient's peritoneum in the abdomen.]
• Initialism of penile duplication. [diphallia]
• (U.S. military) Abbreviation of period (full stop) punctuation mark, used in communication systems without punctuation (e.g., telegrams). [A length of time.]
• Initialism of professional development.
• (law) Initialism of public defender. [(law) An attorney appointed to represent people who cannot afford to hire one.]
• (pathology) Initialism of Parkinson’s disease.
• (pathology) Initialism of panic disorder. [An anxiety disorder involving severe recurring panic attacks.]
• (pathology) Initialism of personality disorder. [(psychiatry) Any of a class of mental disorders characterized by ongoing rigid patterns of thought and action.]
• (ophthalmology) Initialism of pupillary distance.
• Initialism of process deviation.
• (electronics) Initialism of power delivery.
• (electricity) Initialism of partial discharge. [A localized electrical breakdown of a small portion of a solid or fluid electrical insulator when being applied to high voltage.]
• Initialism of pole dance. [A form of dancing and acrobatics centred on a pole, practiced as a gymnastic or erotic activity.]
• (sports) Initialism of performance director.
• (Ireland, politics, historical) Initialism of Progressive Democrat.
• Initialism of positive deviance.
• (Ireland) Initialism of Progressive Democrats, a former political party disbanded in 2008.
• (Malaysia) Initialism of Port Dickson, a town and district. [A town and district in Negeri Sembilan, Malaysia.]