Search by letter: P
Search by letter
Search by letter: P
- Privas: Prefecture of Ardèche in Auvergne-Rhône-Alpes, France Privas
- Private: Meaning, Uses, and Distinctions Private
- Private (military rank) Private (rank)
- Private bill
- Private company (privately held company) Private company
- Private equity: overview, structures, strategies, and impacts Private equity
- Private Finance Initiative (PFI): public-private project financing and debate Private Finance Initiative
- Private First Class (PFC) Private First Class
- Private network (computer networking) Private network
- Private prison: privately operated correctional facilities Private prison
- Private property: legal, economic, and political perspectives Private property
- Private school (independent or nonstate educational institution) Private school
- Privateer (state‑commissioned maritime raider) Privateer
- Privateer (motorsport)
- Privatization: transfer of public assets and services to private control Privatization
- Privy Council
- Privy Council of the United Kingdom
- Prix Benois de la Danse
- Prix Constantin
- Prix de Rome: French state scholarship for the arts Prix de Rome
- Priyan (Indian cinematographer) Priyan
- Prize: concept, types, history and impact Prize
- Prizzi's Honor (1985) — black comedy crime film Prizzi's Honor
- Pro bono: voluntary professional work for the public good Pro bono
- Pro Bowl — National Football League all‑star game Pro Bowl
- Pro Football Hall of Fame
- Pro tempore: meaning, uses, and roles in government, law and academia Pro tempore
- Pro Tools: Professional Digital Audio Workstation — Features and Uses Pro Tools
- Pro Wrestling Guerrilla
- Pro Wrestling Illustrated
- Pro Wrestling Noah
- Pro-choice: overview, principles, legal context, and public debate Pro-choice
- Pro‑slavery in the United States Pro-slavery (United States)
- Probability: fundamental concepts, history, and practical applications Probability
- Probability density function function that characterizes any continuous probability distribution.
- Probability distribution: definition, types, properties and applications Probability distribution
- Probability space (measure-theoretic model of random experiments) Probability space
- Probability theory: foundations, concepts, history, and applications Probability theory
- Probable prime
- Probate: legal process for administering a deceased person's estate Probate
- Probe droid (Star Wars reconnaissance droid) Probe droid
- Problem (song) — Ariana Grande featuring Iggy Azalea Problem (song)
- Problem Child 2 (1991 film) Problem Child 2
- Problem of Evil
- Problem solving: concepts, methods, and applications Problem solving
- Proboscidea: the order of trunked mammals Proboscidea
- Proboscis: elongated snouts and tubular feeding organs Proboscis
- Proboscis monkey (Nasalis larvatus) Proboscis monkey
- Probyn Ellsworth Inniss — Governor of Saint Christopher-Nevis-Anguilla (1975–1981) Probyn Inniss
- Procellariidae — the petrels, prions, and shearwaters Procellariidae
- Procellariiformes: the tube‑nosed seabirds Procellariiformes
- Proceratosaurus — a small Middle Jurassic tyrannosauroid Proceratosaurus
- Process: definition, types, characteristics and examples Process
- Process (computing): execution instance, lifecycle, and characteristics Process (computing)
- Process switching latency in operating systems Process switching latency
- Processed cheese
- Procompsognathus: a small Late Triassic theropod Procompsognathus
- Procopius of Caesarea: Sixth‑Century Historian of the Justinian Era Procopius
- Procoptodon: giant short-faced kangaroos of Pleistocene Australia Procoptodon
- Procrastination: causes, effects, and ways to manage delaying tasks Procrastination
- Procter & Gamble: History, Brands, and Corporate Profile Procter & Gamble
- Procyon (Alpha Canis Minoris) Procyon
- Procyonidae: raccoons, coatis, kinkajous and relatives Procyonidae
- Prodigy (rapper)
- Produce: Fruits and Vegetables — Definition, Uses, Storage, and Shopping Produce
- Producer
- Producer gas
- Product (goods, services, and mathematical meanings) Product
- Product (business): definition, types, lifecycle and uses Product (business)
- Product (chemistry)
- Product (mathematics)
- Product cipher: structure, types, and cryptographic role Product cipher
- Product stewardship and extended producer responsibility Product stewardship
- Production: processes, types, and economic role Production
- Production vehicle
- Productive Efficiency
- Profanity: definitions, categories, cultural history, and social effects Profanity
- Profession: definition, history, characteristics and modern roles Profession
- Professional: definition, roles, standards, and distinctions Professional
- Professional Air Traffic Controllers Organization (1968–1981) Professional Air Traffic Controllers Organization (1968)
- Professional baseball
- Professional certification: purpose, types, process, and impact Professional certification
- Professional Developers Conference (PDC) — Microsoft developer event Professional Developers Conference
- Professional Golfers Association (PGA): Roles, Structure and Global Variants Professional Golfers Association
- Professional Griefers — deadmau5 featuring Gerard Way Professional Griefers
- Pro Wrestling: Staged Athletic Performance, Storytelling, and the Promotions Industry Professional wrestling
- High‑flying techniques in professional wrestling Professional wrestling aerial techniques
- Professional Wrestling Attacks: Types, Purpose, and History Professional wrestling attacks
- Professional wrestling holds
- Professional wrestling match types
- Professor (academic rank and role) Professor
- Professor Hubert J. Farnsworth — Futurama's eccentric inventor Professor Farnsworth
- Professor Green (Stephen Manderson) — English rapper, presenter and activist Professor Green
- Professor James Moriarty — Sherlock Holmes's Criminal Mastermind Professor Moriarty
- Professor X (Charles Xavier) — founder and leader of the X-Men Professor X
- Professor's Cube (5×5×5 Rubik-style puzzle) Professor's Cube
- Profit (business and economic meaning) Profit
- Profondeville (Belgium) — municipality in Namur province Profondeville
- Progeria (Hutchinson–Gilford progeria syndrome) Progeria
- Progeroid Syndromes: Causes, Features, and Research Significance Progeroid syndromes
- Progesterone
- Prognathism: facial projection of the jaws and its clinical and evolutionary context Prognathism
- Prognosis (medical prediction of disease outcome) Prognosis
- Program
- Program music
- Program specification
- Programmable Logic Controller (PLC): Overview, Components, Uses and History Programmable logic controller
- Programmable Read-Only Memory (PROM) Programmable read-only memory
- Programmed learning: methods, history, and applications Programmed learning
- Computer programmer Programmer
- Programming language type of written language that tells computers what to do
- Programming paradigm a way of grouping programming languages by what they do
- Progreso Lakes, Texas
- Progreso, Texas: Border City in Hidalgo County Progreso, Texas
- Progression: ordered change in mathematics, music, and other fields Progression
- Progressive bluegrass: evolution, features, and influence Progressive bluegrass
- Progressive conservatism: balancing tradition and reform Progressive conservatism
- Progressive Conservative Party of Manitoba
- Progressive Conservative Party of Ontario
- Progressive Field — Cleveland's Major League Baseball Ballpark Progressive Field
- Progressive metal (prog metal) Progressive metal
- Progressive muscular atrophy
- Progressive National Baptist Convention
- Progressive Party (United States, 1912) — the Bull Moose movement Progressive Party (United States, 1912)
- Progressive rock
- Progressive scan (video display method) Progressive scan
- Progressive supranuclear palsy: overview, features, and management Progressive supranuclear palsy
- Progressivism: ideas, history and public reforms Progressivism
- Prohibition in the United States (1920–1933) Prohibition in the United States
- Prohibition Party (United States political party) Prohibition Party
- Proisy (Aisne) — commune in northern France Proisy
- Proix — a small commune in the Aisne department of northern France Proix
- Project: Definition, Characteristics, History and Uses Project
- Project Athena: MIT’s campus computing initiative (1983–1991) Project Athena
- Project Gotham Racing (series)
- Project Gutenberg: history and free public-domain eBook library Project Gutenberg
- Project management: principles, lifecycle, methods, and roles Project management
- Project Runway (American reality fashion-competition series) Project Runway
- Project Syndicate: global opinion and syndication network Project Syndicate
- Project X (2012 film) Project X
- Projectile (physics, arms, and applications) Projectile
- Projection (concept) Projection
- Projection (mathematics)
- Prokaryote: overview, structure, classification and ecological importance Prokaryote
- Prokash Karmakar: Indian Modern Painter (1933–2014) Prokash Karmakar
- Prokopis Pavlopoulos — Greek jurist, politician and President (2015–2020) Prokopis Pavlopoulos
- Proletariat
- Prolog: a logic programming language Prolog
- Promenade concerts: history and evolution of public strolling concerts in Britain Promenade concert
- Promenade MRT station (CC4 / DT15) — Singapore underground interchange Promenade MRT station
- Prometheus: Titan of fire, creator of humanity, and cultural symbol Prometheus
- Prometheus (2012 film) Prometheus (2012 movie)
- Prometheus (moon of Saturn) Prometheus (moon)
- Prometheus Global Media — overview of the entertainment trade publisher Prometheus Global Media
- Promethium (element 61) — properties, isotopes, history and uses Promethium
- Promiscuity: social meanings, sexual behavior, and biological perspectives Promiscuity
- Promises: Forms, Legal Effects, and Social Role Promise
- Promise — Romeo Santos featuring Usher: 2011 Latin pop single Promise (song)
- Promise City, Iowa
- Promised Land
- Promised Land (2012 film) Promised Land (movie)
- Promises (Calvin Harris and Sam Smith song)
- Promises! Promises! — 1963 film and its cultural controversy Promises! Promises!
- Promoter (genetics)
- Promotion (marketing and communication): methods, history, and uses Promotion
- Promotion and Relegation in Sports League Systems Promotion and relegation
- Promotional recording
- Promoucaes (Promaucaes, Purumaucas): pre-Columbian people of central Chile Promoucaes
- Pronghorn (Antilocapra americana) Pronghorn
- Pronoun (grammar) Pronoun
- Pronunciation: how words are spoken and what shapes their sound Pronunciation
- Pronville — commune in the Pas-de-Calais department of northern France Pronville
- Proof: meanings in logic, law, food, manufacture, and publishing Proof
- Propaganda: definition, history, techniques, and modern challenges Propaganda
- Propane (C3H8) — properties, uses, production and safety Propane
- Propædia: Britannica's Outline of Knowledge and Guide to the 15th Edition Propædia
- Propellant: substances and systems that produce thrust or pressure Propellant
- Propeller
- Propene (propylene): properties, production, uses, and safety Propene
- Proper motion in astronomy Proper motion
- Proper noun
- Property: ownership, types, rights, and social role Property
- Property damage: causes, types, legal aspects and prevention Property damage
- Property law: concepts, classifications, rights and applications Property law
- Property tax: overview, types, assessment, uses, and distinctions Property tax
- Prophecy: meaning, forms, history, and cultural roles Prophecy
- Prophet: Religious Messengers, Voices, and Roles Prophet
- Prophets of Islam
- Prophetstown, Illinois: small city on the Rock River and local prairie community Prophetstown, Illinois
- Prophylaxis
- Prophylactic moves in chess — anticipating and preventing opponent plans Prophylaxis (chess)
- Propithecus (sifakas): lemurs of Madagascar Propithecus
- Propofol: general properties, uses, administration, and safety Propofol
- Propolis
- Proportional representation: systems, types, advantages and global use Proportional representation
- Proportionality: direct and inverse relationships in mathematics and applications Proportionality
- Proportions: definitions, properties, history and practical uses Proportions
- Proposal
- Proposed top-level domain
- Proposition (philosophy and logic) Proposition
- Propositional logic: basics, structure, history, and applications Propositional logic
- Proprietary software
- Proprioception (kinesthetic sense) Proprioception
- Propulsion tools and methods for land, water, air, and space movement Propulsion tools
- Proscription: state condemnation, exile, and political purge Proscription
- Prose (ordinary written and spoken language) Prose
- Prosecutor: role, duties, and legal context Prosecutor
- Proselyte
- Proselytism: Meaning, History, Methods, and Contemporary Issues Proselytism
- Prosencephalon (Forebrain): Structure, Development, and Clinical Significance Prosencephalon
- Proserpina — Roman goddess of spring and queen of the underworld Proserpina
- Prosimian — informal grouping of early primates Prosimian
- PROSOCO — U.S. manufacturer of specialty construction chemical products PROSOCO
- Prosopis tamarugo — tamarugo, a leguminous tree of the Atacama Pampa Prosopis tamarugo
- Prospect Heights, Illinois — suburban city northwest of Chicago Prospect Heights, Illinois
- Prospect, Kentucky — suburban city on the Ohio River near Louisville Prospect, Kentucky
- Prospecting: search for minerals, fossils and precious metals Prospecting
- Prosper Avril
- Prosper Ego (1927–2015) Prosper Ego
- Prospero Grech — Maltese Augustinian theologian and cardinal Prosper Grech
- Prosper Mérimée
- Prospero — an irregular retrograde moon of Uranus Prospero (moon)
- Prospero Nograles
- Prosser, Washington
- Prostate: anatomy, function, common conditions, diagnosis and treatment Prostate
- Prostate cancer
- Prostatectomy
- Prostatitis: causes, types, symptoms, diagnosis and management Prostatitis
- Prosthechea cochleata — cockleshell (clamshell) orchid, Belize's Black Orchid Prosthechea cochleata
- Prosthesis
- Prostitution: definition, forms, history, legal approaches and social issues Prostitution
- Protacanthopterygii
- Protactinium: an overview of the radioactive actinide element Protactinium
- Protagonist: the central character of a narrative Protagonist
- Protagoras: Greek sophist, teacher, and early proponent of relativism Protagoras
- Protarchaeopteryx: a small feathered maniraptoran from Early Cretaceous China Protarchaeopteryx
- Protea — diversity, ecology and cultural importance of the South African shrub Protea
- Proteaceae: family of Southern Hemisphere flowering plants Proteaceae
- Proteales — Order of eudicot flowering plants (Proteaceae, Nelumbonaceae, Platanaceae) Proteales
- Protease — enzymes that cleave proteins and their biological roles Protease
- Protect IP Act (PIPA): U.S. proposed copyright enforcement legislation PROTECT IP Act
- Protected area: definition, types, importance and management Protected area
- Protection: meaning, types, history, and practical uses Protection
- Protection (1994 album by Massive Attack) Protection (album)
- Protection (song) — Massive Attack Protection (song)
- Protectionism (trade policy) Protectionism
- Protectionist Party (Australia, 1889–1909) Protectionist Party
- Protectorate: Definition, History, Forms, and Notable Examples Protectorate
- Protégé: meaning, roles, history and distinctions Protégé
- Protein: structure, synthesis, functions, and significance Protein
- Protein biosynthesis: how cells make proteins Protein biosynthesis
- Protein Data Bank (PDB): archive of macromolecular structures Protein Data Bank
- Protein filament: structure, types, and biological roles Protein filament
- Protein folding: how polypeptides acquire their functional three‑dimensional form Protein folding
- Protein structure and folding: architecture, dynamics, and methods of study Protein structure
- Proteobacteria: diversity, characteristics, ecological and medical roles Proteobacteria
- Proteome: the complete set of proteins expressed by an organism Proteome
- Proterozoic Eon: geology, climate, and the rise of complex life Proterozoic
- Public Protests: Types, Methods, Legal Context, and Political Impact Protest
- Protest song
- Protest the Hero — Canadian progressive metal band Protest the Hero
- Protestant Reformation: causes, leaders, conflicts and legacy Protestant Reformation
- Protestantism: origins, beliefs, branches, and historical impact Protestantism
- Proteus — Neptune’s large inner moon Proteus (moon)
- Prothom Alo (Bengali daily newspaper) Prothom Alo
- Protists: a diverse assemblage of mostly single-celled eukaryotes Protist
- Protivin, Iowa: a small Czech-American city in northeastern Iowa Protivin, Iowa
- Proto-Indo-European language (PIE) Proto-Indo-European language
- Proto-Indo-Europeans
- Proto-language: reconstructed ancestral language of a family Proto-language
- Proto-Sinaitic script
- Proto-World language (Proto‑Human) Proto-World language
- Protoceratops — small horned dinosaur of the Late Cretaceous Protoceratops
- Protoclepsydrops — early Carboniferous amniote of the Joggins cliffs Protoclepsydrops
- Protocol 41 (IPv6-in-IPv4 encapsulation) Protocol 41
- Protocoleoptera: the earliest beetles and their fossil evidence Protocoleoptera
- Protologism
- Proton: Structure, Properties, and Role in Atomic Nuclei Proton
- Proton decay: theory, predictions and experimental searches Proton decay
- Protonation: the addition of a proton to molecules and functional groups Protonation
- Protoplasm: the historical concept of living cell substance Protoplasm
- Protoplast (wall-less cell): definition, isolation, uses, and distinctions Protoplast
- Protopunk: Musical roots and influence on punk rock Protopunk
- Protostar: the formative stage of a star Protostar
- Protostomes Protostome
- Prototheria — historical grouping of early mammals Prototheria
- Prototype
- Protozoa: single-celled eukaryotes, diversity, ecology and significance Protozoa
- Protractor — Instrument for Measuring Angles Protractor
- Protura: tiny soil-dwelling hexapods with unique sensory legs Protura
- Proussy — former commune in Calvados, Normandy Proussy
- Prouvais — a rural commune in the Aisne department of northern France Prouvais
- Provenance: history, meaning, and importance of ownership records Provenance
- Provencal, Louisiana
- Provence: geography, history, culture and economy of southeastern France Provence
- Provence-Alpes-Côte d'Azur (PACA): geography, culture and administration Provence-Alpes-Côte d'Azur
- Provence, Switzerland
- Provency — a commune in Yonne, France Provency
- Proverb: concise traditional sayings of folk wisdom Proverb
- Providence Bruins