ExpertGlossary terms starting with P

3,647 terms

Piling A single pole or group of poles placed together at the edge of the water in order to tie tows, barges or boats at the waters edge.
Piling unmerchantable material (PUM) A logging contract requirement to remove and pile unmerchantable woody material of a specified size.
pilocarpine A drug used to increase salivation in people who have dry mouth caused by opioids or radiation therapy.
pilocytic (PI-lo-SIT-ik) Made up of cells that look like fibers when viewed under a microscope.
pilot 1. A signal, usually a single frequency, transmitted over a communications system for supervisory, control, equalization, continuity, synchronization, or…
Pilot Balloon (Abbrev. PIBAL)- A small helium-filled meteorological balloon that is tracked as it rises through the atmosphere to determine how wind speed and direction…
pilot frequency See synchronizing pilot.
pilot identifier The string that is received with a new call that is used to associate the call with a dial plan. [Exchange 2007]
pilot number A telephone number that points to a hunt group and is the access number for calls that are routed to Unified Messaging servers.
Pilot Production Production line normally established during EMD to test new manufacturing methods and procedures. Normally funded by RDT&E until the line is proven.
Pilot Report (Abbrev. PIREP)- A report of inflight weather by an aircraft pilot or crew member.
Pilot scale The size of a system between the small laboratory model size (bench scale) and a full-size system.
pilot study The initial study examining a new method or treatment.
pilot subcarrier 1. A subcarrier that serves as a control signal for use in the reception of FM stereophonic sound broadcasts. [47 CFR 73.310] 2.
pilot tone See pilot.
pilot-make-busy (PMB) circuit 1. A circuit arrangement by which trunks provided over a carrier system are made busy to the switching equipment in the event of carrier system failure…
PIM Position of Intended Movement (USN term).
PIMS Programmable Implantable Medication System.
PIN Noncancerous growth of cells lining the internal and external surfaces of the prostate gland.
PIN (Personal Identification Number) A security method used to show "what you know." Depending on the system, a PIN could be used to either claim or verify a claimed identity.
PIN diode Acronym for positive-intrinsic-negative diode. A photodiode with a large, neutrally doped intrinsic region sandwiched between p-doped and n-doped…
PIN photodiode Synonym PIN diode.
Pinching Illegally removing chips from a bet after an unfavorable decision.
pineal body A tiny organ in the cerebrum that produces melatonin. Also called pineal gland and pineal organ.
pineal gland (PIN-ee-al) A tiny organ in the cerebrum that produces melatonin. Also called pineal body and pineal organ.
pineal organ A tiny organ in the cerebrum that produces melatonin. Also called pineal body and pineal gland.
pineal region tumor (PIN-ee-al...) A type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.
pineoblastoma (PIN-ee-oh-blas-TOH-muh) A fast growing type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.
pineocytoma (PIN-ee-oh-sy-TOH-muh) A slow growing type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.
Ping Ping is a computer network tool used to test whether a particular host is reachable across an IP network.
Pingo A large frost mound of more than one-year duration.
pink noise In acoustics, noise in which there is equal power per octave.
Pink Sheets Pink Sheets LLC is a centralized financial information network. It provides current prices and other information in both print and electronic formats to…
pinkeye A condition in which the conjunctiva (membranes lining the eyelids and covering the white part of the eye) become inflamed or infected.
pinocytosis The engulfing of a minute droplet of liquid by a living cell.
pioglitazone (py-oh-GLIH-tuh-zone) A drug that is used to treat type 2 diabetes and is being studied in the prevention of head and neck cancer.
Pioneer Invention An invention that breaks new ground in a technological art or that creates a new art.
Pioneer Patent A patent on an invention that breaks new ground in a technological art or that creates a new art.
Pioneering The first working over of rough or overgrown areas.
PIP (1) Predicted Impact Point. (2) Predicted Intercept Point. (3) Product Improvement Proposal/Program.
pipe A circular conduit constructed of any one of a number of materials that conveys water by gravity or under pressure.
Pipe trench A temporary excavation in which pipe is placed and eventually covered with soil material.
pipe, to Same 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.
pipeline A series of processes all in a row, linked by pipes, where each passes its output stream to the next.
pipelining In the Exchange Management Shell, one or more chained commands that are separated by the pipeline operator.
piperacillin-tazobactam A drug combination that is used to treat infection in people with cancer. Piperacillin is a synthetic penicillin; tazobactam enhances the effectiveness of…
pipette Widely used device for accurate dispensing of small volumes of liquids.
Piping The erosion of embankment or foundation material (soil) due to leakage. The action of water passing through or under an embankment dam and carrying with…
PIPT Program Integrated Product (Process) Team.
PIR Program Information Report.
PIREP Pilot Report. A report of inflight weather by an aircraft pilot or crew member.
pirfenidone A substance that is being studied in the prevention and treatment of scar tissue caused by radiation therapy.
Piritrexim (peer-ee-TREX-im) A substance that is being studied in the treatment of cancer. It belongs to the family of drugs called folate antagonists.
pistil Central organ of the flower, typically consisting of ovary, style and stigma. Usually referred to as the female part of a perfect flower.
Piston A circular element that moves up and down the cylinder, compressing the air-fuel mixture in the top of the chamber, helping to produce horsepower.
Pit An area consisting of a number of gaming tables.
Pit Boss A casino employee in the pit who oversees the table games and the dealers.
Pit Road An area just off the race track where the pit crews service the race cars. NASCAR pit crews are proficient at changing tires, making adjustments, and even…
Pit run gravel Natural gravelly material taken from excavation. Gravelly material which is not processed.
Pit stall The area along pit road that is designated for a particular team's use during pit stops. Each car stops in the team's stall before being serviced.
Pitch Characters (or dots) per inch, measured horizontally.
Pitch Control A method of controlling a wind turbine's speed by varying the orientation, or pitch, of the blades, and thereby altering its aerodynamics and efficiency.
Pitched Sloping, especially referring to a roof.
Pitching Fishing technique in which worms or jigs are dropped into cover at close range with an underhand pendulum motion using a long bait-casting rod, and…
Pithouse A semi-subterranean dwelling with an excavated floor and earthen superstructure supported by posts and beams.
PITI Common acronym for principal, interest, taxes, and insurance—used when describing the monthly charges on a mortgage.
PITI Reserves A cash amount that a borrower has available after making a down payment and paying closing costs for the purchase of a home.
PITIO Abbreviation for p rincipal, i nterest, t axes, i nsurance and o ther monthly non-housing costs.
Pitot Tube A device for measuring the velocity of flowing water using the velocity head of the stream as an index of velocity.
Pituitary gland (pih-TOO-ih-TAYR-ee...) The main endocrine gland. It produces hormones that control other glands and many body functions, especially growth.
pituitary tumor (pih-TOO-ih-TAYR-ee TOO-mer) A tumor that forms in the pituitary gland. The pituitary is a pea-sized organ in the center of the brain above the back of…
pivot node The 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…
Pivotal supplier A power supplier whose capacity must be used to meet peak demand and whose capacity exceeds the market’s supply margin.
PIX picture
pixantrone A substance that is being studied in the treatment of cancer. It belongs to the family of drugs called antitumor antibiotics. Also called BBR 2778.
pixel Picture Element.
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.
PJS A genetic disorder in which polyps form in the intestine and dark spots appear on the mouth and fingers.
PK Player Kill or Player Killer.
PKC An enzyme found throughout the body's tissues and organs. Several forms of PKC are involved in many cellular functions.
PKC412 A substance that is being studied in the treatment of leukemia. It belongs to the family of drugs called protein kinase inhibitors.
PKCS Public Key Cryptography Standard.
PKH Probability of Kill, given a hit. 225
PKI Public 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.
PKI Digital Signature A document or file may be digitally signed using a partys private signature key, creating a digital signature that is stored with the document.
PKO Peacekeeping Operations.
Pkss Probability of kill -- single shot.
PKU An inherited disorder that causes a build-up of phenylalanine (an amino acid) in the blood.
PL Ice pellets (sleet)
PL/I A programming language that is designed for use in a wide range of commercial and scientific computer applications.
PLA (1) Peoples Liberation Army (Chinas army). (2) Patent License Agreement.
place A virtual location that is visible in the portal where individuals and groups meet to collaborate.
Place of employment Place of employment means the worksite or physical location where the work actually is performed.
Place-Based Management A conservation or management regime that includes a legally-defined area with greater conservation regulation or statutory law applying inside its…
Placebo An inactive substance or treatment that looks the same as, and is given the same way as, an active drug or treatment being tested.
placebo therapy (pluh-SEE-boh THAYR-uh-pee) An inactive treatment or procedure that is intended to mimic as closely as possible a therapy in a clinical trial.
placebo-controlled Refers to a clinical study in which the control patients receive a placebo.
Placed To put in a particular place or in a particular state.
Placement See Positioning.