pipeA circular conduit constructed of any one of a number of materials that conveys water by gravity or under pressure.
pipe, toSame as "to pipeline": In the Microsoft Exchange Management Shell, the act of one cmdlet using the output of another cmdlet when it performs an operation.
pipelineA series of processes all in a row, linked by pipes, where each passes its output stream to the next.
pipeliningIn the Exchange Management Shell, one or more chained commands that are separated by the pipeline operator.
PistonA circular element that moves up and down the cylinder, compressing the air-fuel mixture in the top of the chamber, helping to produce horsepower.
PitAn area consisting of a number of gaming tables.
PitchCharacters (or dots) per inch, measured horizontally.
pivot nodeThe network element that routes a call to the release node, and informs the release node that it is capable of performing pivot functionality on that…
Pixels Per Inch (PPI)A measure of the resolution of a digital image. The higher the PPI, the more information is included in the image, and the larger the file size.
PKIPublic Key Infrastructure - a system of administrative procedures and methods, combined with secure information technologies, that is used to manage…
PKI (public key infrastructure)The laws, policies, standards, and software that regulate or manipulate certificates and public and private keys.
PlanA benefit your employer, union or other group sponsor provides to you to pay for your health care services.
Plan of Action and Milestones (POA&M)A document that identifies tasks needing to be accomplished. It details resources required to accomplish the elements of the plan, any milestones in…
planar arrayAn antenna in which all of the elements, both active and parasitic, are in one plane.
Planck's constantThe constant of proportionality, represented by the symbol h, that relates the energy E of a photon with the frequency of the associated wave through the…
Planck's lawThe fundamental law of quantum theory that describes the essential concept of the quanta of electromagnetic energy.
planeA part of the intelligent network conceptual model. [T1.667-1999]
plane waveA wave whose surfaces of constant phase are infinite parallel planes normal to the direction of propagation. 2.
planimetricThe horizontal (x,y) locations of non-topographic features, such as rivers, lakes, buildings, roads, etc.
planimetric dataData about features on the Earth surface that are represented only by their correct horizontal position.
Planimetric MapContains point and line map layers of visible features from aerial photography, such as streets, sidewalks, alleys, buildings, open space, utilities, etc.
planned downtimeAn anticipated period of time when nodes are taken down for hardware maintenance, software maintenance (OS and application), backup, reorganization…
Planning, Land Use, and ZoningFor example, resources describing zoning maps, and information used for planning the environment.
PlantStation where mechanical, chemical, and/or nuclear energy is converted into electric energy.
plastic-clad silica (PCS) fiberAn optical fiber that has a silica-based core and a plastic cladding. Note 1: The cladding of a PCS fiber should not be confused with the polymer overcoat…
plate modulationThe modulation produced by introduction of the modulating wave into the plate circuit of any tube in which the carrier frequency wave is present.
platformA generic radar term, often used to encompass the pedestal and antenna assembly; sometimes including the radar control, display and analysis hardware and…
platform configuration registerA register inside a Trusted Platform Module (TPM). This register is sufficiently large to contain a hash (currently only SHA-1).
platform profileA profile whose focus is on functionality and interfaces for a particular type of platform (e.g.
Play on PhoneA Unified Messaging feature that users can use to play their voice messages or play and record personalized voice mail greetings, over a telephone.
PlenumThe space between a hanging ceiling and the floor above or roof; usually contains HVAC ducts, electrical wiring, fire suppression system piping, etc.
plesiochronousThat relationship between two signals such that their corresponding significant instants occur at nominally the same rate, any variations being…
PLISNProvisioning List Item Sequence Number (ILS term).
PLLA type of chronic lymphocytic leukemia (CLL) in which too many immature white blood cells (prolymphocytes) are found in the blood and bone marrow.
plotterAn output unit that presents data in the form of a two-dimensional graphic representation.
PMIPrivate Mortgage Insurance; privately-owned companies that offer standard and special affordable mortgage insurance programs for qualified borrowers with…
PMITPATRIOT Missile Integration Team (PAC-3 Program term).
POD(1) Plan of the Day. (2) Probability of Detection. (3) Port of Debarkation.
PODIUMProject Origination Design, Implementation and Maintenance.
POE(1) Program Office Estimate. (2) Projected Operating Environment.
POETA consortium of scientist and engineers from FFRDCs providing technical support to the MDA. (Formerly referred to as the Phase One Engineering Team.)
pointAn amount equal to one percent of the principal amount of a mortgage. Loan discount points are a one-time charge assessed at closing by the lender to…