20-letter words containing p, r, e, n, g, i
- harmonic progression — a series of numbers the reciprocals of which are in arithmetic progression.
- helicopter parenting — a style of child rearing in which an overprotective mother or father discourages a child's independence by being too involved in the child's life: In typical helicopter parenting, a mother or father swoops in at any sign of challenge or discomfort.
- high-energy particle — Physics
- how are you keeping? — how are you?
- hyperbolic cotangent — a hyperbolic function that is the ratio of cosh to sinh, being the reciprocal of tanh; coth
- ignotum per ignotius — an explanation that is obscurer than the thing to be explained
- industrial espionage — the stealing of technological or commercial research data, blueprints, plans, etc., as by a person in the hire of a competing company.
- inertial upper stage — a U.S. two-stage, solid-propellant rocket used to boost a relatively heavy spacecraft from a low earth orbit into a planetary trajectory or an elliptical transfer orbit. Abbreviation: IUS.
- infrared photography — photography using film with an emulsion that is sensitive to infrared light, enabling it to be used in misty weather, in darkened interiors, or at night. It has applications in aerial surveys, the detection of forgeries, etc
- innerspring mattress — a mattress with built-in coil springs
- integration by parts — Mathematics. a method of evaluating an integral by use of the formula, ∫udv = uv − ∫vdu.
- judicial proceedings — any action involving or carried out by a court of law
- keep a tight rein on — to control carefully; limit
- king charles spaniel — a variety of the English toy spaniel having a black-and-tan coat.
- knights hospitallers — a military religious order founded about the time of the first crusade (1096–99) among European crusaders. It took its name from a hospital and hostel in Jerusalem
- kruger national park — a wildlife sanctuary in NE South Africa: the world's largest game reserve. Area: over 21 700 sq km (8400 sq miles)
- legal representation — representation by a lawyer
- linguistic geography — dialect geography.
- literate programming — (programming, text) Combining the use of a text formatting language such as TeX and a conventional programming language so as to maintain documentation and source code together. Literate programming may use the inverse comment convention.
- little ringed plover — a small grey and brown coloured plover which breeds in Europe and Asia and migrates to Africa for winter
- mail transport agent — Message Transfer Agent
- malpighian corpuscle — Also called kidney corpuscle, Malpighian body. the structure at the beginning of a vertebrate nephron, consisting of a glomerulus and its surrounding Bowman's capsule.
- marketing department — the department of a commercial organization that deals with the marketing of products
- matched-pairs design — (of an experiment) concerned with measuring the values of the dependent variables for pairs of subjects that have been matched to eliminate individual differences and that are respectively subjected to the control and the experimental condition
- mopping-up operation — an operation after a battle or campaign to root out remaining enemy forces or installations
- nephroangiosclerosis — (pathology) sclerosis of the renal arterioles.
- neurophysiologically — In terms of, or with regard to, neurophysiology.
- neuropsychologically — In terms of or by means of neuropsychology.
- nonrepeating decimal — a decimal representation of any irrational number, having the property that no sequence of digits is repeated ad infinitum.
- omega-minus particle — a baryon with strangeness −3, isotopic spin 0, and negative charge; predicted from the mathematics of the Eightfold Way and subsequently discovered. Symbol: Ω −.
- open learning centre — an establishment which provides further education on a flexible part-time basis
- operant conditioning — conditioning (def 1).
- operating conditions — Operating conditions are a set of conditions for operating a particular system or process.
- operational strategy — a plan or set of plans for successfully running a business, etc
- operator overloading — overloading
- optical mark reading — the reading of marks by an optical device whereby the information can be stored in machine-readable form
- organization expense — the costs associated with organizing a business entity and bringing it into existence
- pan-american highway — a road system proposed in the 1920s linking nations of the Western Hemisphere, extending from Alaska to Santiago, Chile, with some gaps remaining in Panama and Colombia. The section between Nuevo Laredo, Mexico and Panama City is known as the Inter-American Highway Total length about 16,000 miles (25,744 km).
- perpendicular gothic — the style of Gothic architecture in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting
- pessimising compiler — /pes'*-mi:z"ing k*m-pi:l"r/ (Antonym of "optimising compiler") A compiler that produces object code that is worse than the straightforward or obvious hand translation. The implication is that the compiler is actually trying to optimise the program, but through excessive cleverness is doing the opposite. A few pessimizing compilers have been written on purpose, however, as pranks or burlesques.
- philoprogenitiveness — producing offspring, especially abundantly; prolific.
- photogelatin process — collotype (def 1).
- phthalocyanine green — a pigment used in painting, derived from chlorinated copper phthalocyanine and characterized chiefly by its intense green color and permanence.
- poor man's something — a (cheaper) substitute for something
- postcode prescribing — the practice of prescribing more or less expensive and effective medical treatments to patients depending on where they live in a country, and which treatments their health board is willing and able to provide
- pound cost averaging — a method of accumulating capital by investing a fixed sum in a particular security at regular intervals, in order to achieve an average purchase price below the arithmetic average of the market prices on the purchase dates
- prenuptial agreement — A prenuptial agreement is a written contract made between a man and a woman before they marry, in which they state how their assets such as property and money should be divided if they get divorced.
- prescription glasses — corrective spectacles
- presentation manager — The elephantine graphical user interface to the OS/2 operating system.
- price-earnings ratio — the current price of a share of common stock divided by earnings per share over a 12-month period, often used in stock evaluation. Abbreviation: p/e.