20-letter words containing a, p, i, e
- multiple inheritance — (programming) In object-oriented programming, the possibility that a class may have more than one direct superclass in the class hierarchy. The opposite is single inheritance.
- multiple personality — a rare disorder in which an individual displays several functionally dissociated personalities, each of a complexity comparable to that of a normal individual.
- multiplication table — Arithmetic. a tabular listing of the products of any two numbers of a set, usually of the integers 1 through 10 or 1 through 12.
- multiplicative group — a group in which the operation of the group is multiplication.
- multistep hydroplane — a motorship having a flat bottom built as a series of planes inclined forward, the ship planing on each from stem to stern as its speed increases.
- multistorey car park — a car park consisting of several levels
- neapolitan ice cream — variously flavored and colored ice cream and ice mixtures frozen in layers.
- negative campaigning — political campaigning in which a politician or party focuses on criticizing another politician or party rather than emphasizing their own positive qualities
- nephroangiosclerosis — (pathology) sclerosis of the renal arterioles.
- net national product — the gross national product less allowance for depreciation of capital goods. Abbreviation: NNP.
- neurophysiologically — In terms of, or with regard to, neurophysiology.
- neuropsychiatrically — In terms of neuropsychiatry.
- neuropsychologically — In terms of or by means of neuropsychology.
- new democratic party — the Canadian social democratic party formed in 1961
- niemann-pick disease — a rare, hereditary lipid-storage disease, occurring primarily among Ashkenazic Jews, in which abnormal lipid metabolism results in enlargement of the liver, spleen, and lymph nodes, and in progressive mental and physical deterioration.
- nine plus zero array — the arrangement of microtubules characteristic of basal bodies and centrioles, consisting of nine evenly spaced triplets between the outer and inner walls of the structure and having no central microtubules. Symbol: 9 + 0.
- nondirective therapy — client-centered therapy.
- nonrepeating decimal — a decimal representation of any irrational number, having the property that no sequence of digits is repeated ad infinitum.
- north american plate — a major tectonic division of the earth's crust, comprising Greenland and the continent of North America and the suboceanic Labrador and North American Basins, and bounded on the east by the Mid-Atlantic Ridge, on the south by the Caribbean and South American Plates, and on the west by the San Andreas fault and Aleutian Trench.
- north celestial pole — the point of intersection of the earth's extended axis and the northern half of the celestial sphere, lying about 1° from Polaris
- occupation franchise — the right of a tenant to vote in national and local elections
- occupational disease — Also called industrial disease. a disease caused by the conditions or hazards of a particular occupation.
- occupational pension — a pension scheme provided for the members of a particular occupation or by a specific employer or group of employers
- occupational therapy — a form of therapy in which patients are encouraged to engage in vocational tasks or expressive activities, as art or dance, usually in a social setting.
- 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 −.
- one's spiritual home — Your spiritual home is the place where you feel that you belong, usually because your ideas or attitudes are the same as those of the people who live there.
- 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.
- operation barbarossa — the codename for Hitler's invasion (1941) of Russia
- operational calculus — a method for solving a differential equation by treating differential operators as ordinary algebraic quantities, thus obtaining a simpler problem.
- operational database — (database) A database containing up-to-date, modifiable data, in contrast to a decision support database.
- 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
- orthopaedic mattress — a specially firm mattress designed to help correct or ameliorate the discomfort of disorders of the spine and joints
- packed like sardines — If you say that a crowd of people are packed like sardines, you are emphasizing that they are sitting or standing so close together that they cannot move easily.
- paint the town (red) — to go on a boisterous spree; carouse
- 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).
- paper qualifications — qualifications gained through official examinations, etc, rather than through experience
- pappus of alexandria — 3rd century bc, Greek mathematician, whose eight-volume Synagoge is a valuable source of information about Greek mathematics
- para-dichlorobenzene — a white, crystalline, volatile, water-insoluble solid, C 6 H 4 Cl 2 , of the benzene series, having a penetrating odor: used chiefly as a moth repellent.
- parallel of altitude — almucantar.
- parallel of latitude — parallel (def 9).
- parametric amplifier — a device, as an electron tube or transistor, that amplifies a high-frequency input signal by sinusoidally varying the reactance of the circuit.
- parametric equalizer — an electronic device for cutting or boosting selected frequencies by continuous narrowing or widening of the frequencies to be filtered
- parametric equations — one of two or more equations expressing the location of a point on a curve or surface by determining each coordinate separately.
- parkinson's syndrome — a complex of symptoms indistinguishable from Parkinson's disease, commonly affecting boxers or sometimes occurring as a result of substance abuse or an encephalitic infection.
- partial differential — an expression obtained from a given function of several variables by taking the partial derivative with respect to one of the variables and multiplying by the increment in that variable.