16-letter words containing n, e, o, r
- parole violation — an illegal act or offence that breaches the conditions of a prisoner's parole
- parser generator — A program which takes a formal description of a grammar (e.g. in BNF) and outputs source code for a parser which will recognise valid strings obeying that grammar and perform associated actions. Unix's yacc is a well known example.
- partial ordering — a relation defined on a set, having the properties that each element is in relation to itself, the relation is transitive, and if two elements are in relation to each other, the two elements are equal.
- parts of lindsey — an area in E England constituting a former administrative division of Lincolnshire
- passenger pigeon — an extinct pigeon, Ectopistes migratorius, once found in great numbers in North America, noted for its sustained migratory flights.
- paterson's curse — a purple-flowered noxious plant, Echium plantagineum, a close relative of viper's bugloss, naturalized in Australia and NZ where its harmfulness to livestock has prompted attempts to limit its spread
- peace conference — a conference where representatives of warring governments or countries sign a treaty to end conflict
- peano arithmetic — (mathematics) Giuseppe Peano's system for representing natural numbers inductively using only two symbols, "0" (zero) and "S" (successor). This system could be expressed as a recursive data type with the following Haskell definition: data Peano = Zero | Succ Peano The number three, usually written "SSS0", would be Succ (Succ (Succ Zero)). Addition of Peano numbers can be expressed as a simple syntactic transformation: plus Zero n = n plus (Succ m) n = Succ (plus m n) (1995-03-28)
- peasants' revolt — the first great popular rebellion in English history (1381), caused by the imposition of an unpopular poll tax: it lasted less than a month and failed as a social revolution
- pectoralis minor — the smaller of the two large chest muscles that assist in movements of the shoulder and upper arm
- pelican crossing — place to cross road
- pension mortgage — an arrangement whereby a person takes out a mortgage and pays the capital repayment instalments into a pension fund and the interest to the mortgagee. The loan is repaid out of the tax-free lump sum proceeds of the pension plan on the borrower's retirement
- pension provider — the company or organization that makes provision for a person's pension
- percentage point — difference: one per cent
- perchloromethane — carbon tetrachloride.
- percussion drill — a drill that is operated by percussion
- peregrine falcon — a globally distributed falcon, Falco peregrinus, much used in falconry because of its swift flight: several subspecies are endangered.
- performance bond — contract bond.
- performance test — a test requiring little or no use of language, the test materials being designed to elicit manual or behavioral responses rather than verbal ones.
- period furniture — furniture that was made during a particular period in time
- periodic tenancy — the letting of a dwelling for a repeated short term, as by the week, month, or quarter, with no end date
- perpetual motion — the motion of a theoretical mechanism that, without any losses due to friction or other forms of dissipation of energy, would continue to operate indefinitely at the same rate without any external energy being applied to it.
- person of colour — a person who is not White
- person-to-person — (of a long-distance telephone call) chargeable only upon speaking with a specified person at the number called: a person-to-person call to her brother in California. Compare station-to-station.
- personal details — details about a person such as their name and address
- personal effects — belongings
- personal hygiene — bodily cleanliness
- personal liberty — the liberty of an individual to do his or her will freely except for those restraints imposed by law to safeguard the physical, moral, political, and economic welfare of others.
- personal pension — a private pension scheme in which an individual contributes part of his or her salary to a financial institution, which invests it so that a lump sum is available on retirement; this is then used to purchase an annuity
- personal pronoun — any one of the pronouns used to refer to the speaker, or to one or more to or about whom or which he or she is speaking, as, in English, I, we, you, he, she, it, they.
- personal shopper — a person, often a store employee, whose job is to assist shoppers in selecting clothing or other merchandise.
- personal stylist — a person employed by a rich or famous client to offer advice on clothes, hairstyles, and other aspects of personal appearance
- personal trainer — a person who works one-on-one with a client to plan or implement an exercise or fitness regimen.
- personal tuition — private tuition
- personality cult — deliberately cultivated adulation of a person, esp a political leader
- personality test — an instrument, as a questionnaire or series of standardized tasks, used to measure personality characteristics or to discover personality disorders.
- personality type — a cluster of personality traits commonly occurring together
- personnel agency — an agency for placing employable persons in jobs; employment agency.
- peter pan collar — a close-fitting flat or rolled collar with rounded ends that meet in front of a high, round neckline.
- petrol rationing — a scheme rationing the amount of petrol that an individual is allowed to purchase
- pharmacogenetics — the branch of pharmacology that examines the relation of genetic factors to variations in response to drugs.
- pharmacogenomics — the study of human genetic variability in relation to drug action and its application to medical treatment
- pharmacokinetics — the branch of pharmacology that studies the fate of pharmacological substances in the body, as their absorption, distribution, metabolism, and elimination.
- philoprogenitive — producing offspring, especially abundantly; prolific.
- philosopher king — the Platonic ideal of a ruler, philosophically trained and enlightened.
- philosopher-king — the Platonic ideal of a ruler, philosophically trained and enlightened.
- photorespiration — the oxidation of carbohydrates in many higher plants in which they get oxygen from light and then release carbon dioxide, somewhat different from photosynthesis.
- phytoremediation — a process of decontaminating soil or water by using plants and trees to absorb or break down pollutants.
- picture moulding — the edge around a framed picture
- pincers movement — a military maneuver in which both flanks of an enemy force are attacked with the aim of attaining complete encirclement.