21-letter words containing p, u, i, r
- dwarf japanese quince — a low, shrubby, Japanese flowering quince, Chaenomeles japonica, of the rose family, having salmon-to-orange flowers and yellow fruit.
- earthmoving equipment — machines, such as bulldozers, that are used for excavating and moving large quantities of earth
- eastern european time — a standard time used by some countries in Eastern Europe, such as Finland, Romania, etc and also some countries of the Middle East and North Africa
- electromagnetic pulse — a surge of electromagnetic radiation, esp one resulting from a nuclear explosion, which can disrupt electronic devices and, occasionally, larger structures and equipment
- electronic publishing — Electronic publishing is the publishing of documents in a form that can be read on a computer, for example as a CD-ROM.
- emitter coupled logic — (ECL) (Or "Current Mode Logic") A technology for building logic gates where the emitter of a transistor is used as the output rather than its collector. ECL has a propagation time of 0.5 - 2 ns (faster than TTL) and a power dissipation 3 - 10 times higher than TTL.
- empire state building — New York City skyscraper
- employee contribution — money contributed by an employee to his or her employer's pension fund
- employer contribution — money contributed by an employer to his or her employee's pension fund
- endoplasmic reticulum — an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins
- epidermolysis bullosa — type of genetic skin disorder
- equiangular hyperbola — a hyperbola with transverse and conjugate axes equal to each other.
- euro-commercial paper — commercial paper issued in a eurocurrency
- exposure compensation — the act of overriding a camera's automatic exposure in order to achieve a particular effect or due to difficult lighting conditions
- fluorophosphoric acid — any of three acids containing fluorine and phosphorus, HPF 6 , HPO 2 F 2 , or H 2 PO 3 F.
- foreground processing — a type of processing that supports interaction between interactive and batch operations
- fuming sulphuric acid — a mixture of pyrosulphuric acid, H2S2O7, and other condensed acids, made by dissolving sulphur trioxide in concentrated sulphuric acid
- functional imperative — a requirement for the survival of any social system, as communication, control of conflict, or socialization.
- gastrohepatic omentum — lesser omentum.
- gird (up) one's loins — to get ready to do something difficult or strenuous
- historic places trust — (in New Zealand) the statutory body concerned with the conservation of historic buildings, esp with ancient Māori sites
- house of prostitution — a brothel.
- human papilloma virus — a species of virus that causes genital warts. Abbreviation: HPV.
- ieee computer society — (body) The society of the IEEE which publishes the journal "Computer".
- immunoelectrophoresis — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
- immunoelectrophoretic — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
- in (or out of) phase — in (or not in) a state of exactly parallel movements, oscillations, etc.; in (or not in) synchronization
- in (or out of) place — in (or out of) the customary, proper, or assigned place
- indo-australian plate — a major tectonic division of the earth's crust, comprising India and the Australian continent and adjacent suboceanic basins (the Tasman, South Australian, Mid-Indian, Cocos, and Australian basins); separated from the Eurasian Plate by the Java Trench, from the Pacific Plate by the Tonga-Kermadec Trench, and from the African Plate by a series of mid-ocean ridges (the Carlsberg, Mid-Indian, and Southeast Indian ridges).
- industrial psychology — the application of psychological principles and techniques to business and industrial problems, as in the selection of personnel or development of training programs.
- insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
- intellectual property — Law. property that results from original creative thought, as patents, copyright material, and trademarks.
- irish republican army — an underground Irish nationalist organization founded to work for Irish independence from Great Britain: declared illegal by the Irish government in 1936, but continues activity aimed at the unification of the Republic of Ireland and Northern Ireland. Abbreviation: IRA, I.R.A.
- joseph-marie jacquard — (person) /zhoh-zef' mah-ree' zhah-kar'/ (1752-07-07 to 1834-08-07) The inventor of the Jacquard loom.
- junior varsity sports — sports played at the second highest rank for university sports, ranking first after varsity
- make up for lost time — compensate for past inaction
- manufacturing company — a company that manufactures goods
- manufacturing process — chain of production
- maple-leaved viburnum — dockmackie.
- marine superintendent — a person who is responsible for the maintenance of the vessels of a shipping line, for their docking and the handling of cargo, and for the hiring of personnel for deck departments.
- marquise de pompadour — Marquise de (Jeanne Antoinette Poisson Le Normant d'Étioles) 1721–64, mistress of Louis XV of France.
- medical jurisprudence — forensic medicine.
- miniature photography — photography with a camera using film that is 35 millimeters wide or less.
- motion-picture camera — a sequence of consecutive pictures of objects photographed in motion by a specially designed camera (motion-picture camera) and thrown on a screen by a projector (motion-picture projector) in such rapid succession as to give the illusion of natural movement.
- mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
- mucopolysaccharidosis — Any of a group of metabolic disorders caused by the absence or malfunction of lysosomal enzymes needed to break down glycosaminoglycans.
- muhammad riza pahlavi — Pahlavi (def 1).
- multi-ringed compound — A multi-ringed compound is a compound which has 70 or more carbon atoms, often a residual compound.
- multilayer perceptron — A network composed of more than one layer of neurons, with some or all of the outputs of each layer connected to one or more of the inputs of another layer. The first layer is called the input layer, the last one is the output layer, and in between there may be one or more hidden layers.
- multiplex transmitter — a transmitter that sends signals by multiplex