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pay off a score to retaliate in response to a grievance or hurt.
pay phone a usu. coin-operated public telephone.
payroll a list of those who are to be paid by an employer and the sum owed to each. [3 definitions]
pay the piper to suffer the unpleasant consequences of former pleasure or irresponsibility. [2 definitions]
pazazz variant of pizazz.
Pb symbol of the chemical element lead.
PBS abbreviation of "Public Broadcasting Service."
PBX abbreviation of "private branch exchange."
PC abbreviation of "personal computer," a compact computer designed for individual use; microcomputer.
pc. abbreviation of "piece."
PCB any of a family of highly toxic chlorinated isomers of biphenyl, formerly used in manufacturing and as an electrical insulator; polychlorinated biphenyl.
P-Celtic a branch of the Celtic languages that includes Welsh, Cornish, and Breton, in which a "p" sound replaced the Proto-Indo-European "kw" sound.
PCP a powerful and dangerous drug originally intended as an animal tranquilizer but sometimes ingested by humans for its psychedelic and mood-altering effects; phenylcyclohexylpiperidine, or phencyclidine pill.
pct. abbreviation of "percent" or "percentage."
PCV abbreviation of "positive crankcase ventilation," the flow of engine exhaust fumes into an auto engine's cylinders as part of a pollution control system.
PCV valve a one-way valve that regulates the flow of engine exhaust fumes into an auto engine's cylinders, as part of a pollution control system.
Pd symbol of the chemical element palladium.
P.D. abbreviation of "police department."
pd. abbreviation of "paid."
PDF abbreviation of "portable document format," a file format (invented by Adobe Systems, Inc.) that represents documents created in a variety of word processing and desktop publishing programs as they were intended to appear, independently of the platform or hardware with which they are created or read.
PDQ (informal) abbreviation of "pretty damn quick."