All articles starting with P
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Precious Cargo (film)
Precious Cargo (2016) is an American action thriller, Max Adams's directorial debut, starring Bruce Willis, Mark-Paul Gosselaar, and Claire Forlani in a diamond-heist betrayal plot. Released by Lionsgate Premiere April 22, 2016; grossed about $567,064 worldwide against a $10.5 million budget and holds 0% on Rotten Tomatoes.
Precious coral
Precious coral: red, pink, black, gold, and bamboo corals (Coralliidae, Antipatharia) harvested millennia for jewelry; Mediterranean and North Pacific fisheries, CITES status, quotas, and management.
Precious metal
A precious metal is a rare, naturally occurring metallic element of high economic value, resistant to corrosion; the class is usually taken to include gold, silver, and the six platinum-group metals.
Precipitable water
Precipitable water (PW, also precipitable water vapor, PWV) is the total water vapor in a vertical atmospheric column, expressed as the depth of liquid water if fully condensed.
Precipitate labour
Precipitate labour (precipitous labor, rapid labor; ICD-11 JB02.3, ICD-10 O62.3) is abnormally fast childbirth, delivery within under 3 hours of regular contractions, risking hemorrhage, lacerations, and fetal injury.
Precipitating Factors
Precipitating factors (MeSH D015985) are triggers associated with the definitive onset of disease, illness, accident, or behavioral response; one of the 4Ps of clinical formulation, distinct from predisposing factors.
Precipitation
Precipitation, also called atmospheric precipitation, is water in liquid or solid form, such as rain, snow, sleet, or hail, that falls from clouds and reaches the ground, driving the water cycle.
Precipitation (chemistry)
Precipitation, also called chemical precipitation, is the formation of a solid precipitate from solution when a substance exceeds its solubility, occurring when the ion product exceeds the solubility product.
Precipitation hardening
Precipitation hardening, also called age hardening, is a heat-treatment method that strengthens metal alloys when fine second-phase particles precipitate and obstruct dislocation motion, underlying most high-strength aluminum and nickel-based alloys.
Precipitation polymerization
Precipitation polymerization is a free-radical polymerization technique, introduced by Kai Li and Harald Stöver in 1993, in which growing chains precipitate as uniform, surfactant-free microspheres used in chromatography, molecular imprinting, and drug delivery.
Precipitation types
Precipitation types are the distinct forms falling water takes, such as rain, snow, sleet, freezing rain, graupel, and hail, determined by the atmosphere's vertical temperature profile.
Precipitation-strengthened high-entropy alloys
Precipitation-strengthened high-entropy alloys are multi-principal-element alloys whose yield strength is raised by fine ordered nanoprecipitates, such as L1₂ and B2 particles, formed during quenching and aging.
Precipitin Tests
Precipitin tests are serologic assays in which soluble antigen and homologous antibody form a visible precipitate. Introduced by Kraus in 1897 and applied forensically by Uhlenhuth in 1901, they identify species origin of bloodstains and quantify antibody.
Precirix
Precirix, formerly Camel-IDS, was a Brussels-based clinical-stage biotechnology company founded in 2014 that developed radiopharmaceuticals for cancer using camelid single-domain antibodies; it went into liquidation in early 2026.
Precise point positioning
Precise point positioning (PPP) is a GNSS technique that estimates centimeter-level positions at a single receiver using precise satellite orbit and clock corrections, without nearby reference stations.
Precisely (company)
Precisely (formerly Syncsort, founded 1968 as Whitlow Computer Systems) is a Burlington, MA-based data integrity software company serving 12,000+ customers in 100 countries, acquired by Clearlake and TA Associates in 2021.
Precision agriculture
Precision agriculture, also known as smart farming, is a farm management strategy that uses GPS, sensors, and data to adjust inputs to variable field conditions.
Precision and recall
Precision and recall are two paired measures of the performance of a binary classifier or retrieval system, often combined into the F1 score and generally trading off against each other.
Precision approach path indicator
A precision approach path indicator, or PAPI lights, is an airport lighting system showing red and white signals that guide pilots down the approach slope to a runway.
Precision Drill Squad (Singapore)
Silent Precision Drill Squad (SPDS), Singapore Armed Forces ceremonial rifle drill unit formed in 1984 from a 93-man military police unit; performs wordless coordinated drill with MK IV muskets at National Day Parade, Chingay, and Istana Changing-of-Guards.
Precision engineering
Precision engineering is the branch of engineering concerned with designing, manufacturing, and measuring components to tight dimensional tolerances, underpinning semiconductor fabrication, aerospace, and medical device manufacturing, where thermal effects are the largest source of error.
Precision fermentation
Precision fermentation is the use of genetically engineered microorganisms, such as yeasts and fungi, to produce specific molecules like proteins and enzymes without using animals or plants.
Precision Football
Precision Football Club (Precision FC), Dubai, UAE; founded 2023, FIFA-registered club with men's, women's and academy teams at Ibn Battuta Mall; first team finished 4th in the 2024/25 Second Division League.
Precision livestock farming
Precision livestock farming (PLF): sensor-based, real-time monitoring of individual farm animals for reproduction, health, and welfare. Key facts: accelerometer estrus collars and ear tags; only 14% of dairy and 5% of pig commercial tools externally validated.
Precision measurement methods in particle physics
Precision measurement methods in particle physics are the analysis techniques by which collider experiments extract masses, cross sections, and electroweak parameters, treating systematic uncertainty separately from statistical uncertainty.
Precision nuclear run-on sequencing
Precision nuclear run-on sequencing (PRO-seq) is a molecular biology method that maps engaged RNA polymerases genome-wide at base-pair resolution by sequencing the 3' ends of nascent RNA, detecting enhancers and direct transcriptional changes.
Precision radiotherapy
Precision radiotherapy is a set of advanced radiotherapy techniques, including image-guided radiotherapy, IMRT, SBRT, proton therapy, and MR-guided linacs, that shrink targeting margins from centimeters to millimeters and enable daily plan adaptation.
Precision RTL
Precision RTL is an FPGA logic-synthesis tool, originally from Mentor Graphics and now sold by Siemens EDA, that turns Verilog or VHDL into netlists for multiple FPGA vendors.
Precision Runway Monitor
The Precision Runway Monitor (PRM) is an air traffic surveillance system that lets aircraft fly simultaneous independent instrument approaches to parallel runways as close as 3,000 feet apart.
Precision Scheduled Railroading
Precision Scheduled Railroading (PSR) is a freight railroad operating model developed by Hunter Harrison, first applied at Illinois Central, that manages freight at the carload level.