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20-letter words containing p, a, t, r, o

  • heat of vaporization — the heat absorbed per unit mass of a given material at its boiling point that completely converts the material to a gas at the same temperature: equal to the heat of condensation.
  • 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.
  • heteropolysaccharide — (carbohydrate) any polysaccharide formed from two or more different kinds of monosaccharide.
  • holy water sprinkler — morning star (def 2).
  • horizontally opposed — A horizontally opposed engine has the cylinders set horizontally at either side of the crankshaft.
  • hospitality industry — the hotel and accommodation industry
  • houses of parliament — In Britain, the Houses of Parliament are the British parliament, which consists of two parts, the House of Commons and the House of Lords. The buildings where the British parliament does its work are also called the Houses of Parliament.
  • human genome project — a federally funded U.S. scientific project to identify both the genes and the entire sequence of DNA base pairs that make up the human genome.
  • hydrostatic pressure — Hydrostatic pressure is the pressure exerted by a liquid that depends on how deep it is.
  • hyperadrenocorticism — Cushing's syndrome.
  • hyperbolic cotangent — a hyperbolic function that is the ratio of cosh to sinh, being the reciprocal of tanh; coth
  • hypercholesterolemia — the presence of an excessive amount of cholesterol in the blood.
  • hyperhomocysteinemia — (medicine) The presence of an excessive amount of homocysteine in the blood.
  • hyperlipoproteinemia — Pathology. any of various disorders of lipoprotein metabolism, usually characterized by abnormally high levels of cholesterol and certain lipoproteins in the blood.
  • imported currantworm — the larva of any of several insects, as a sawfly, Nematus ribesii (imported currantworm) which infests and feeds on the leaves and fruit of currants.
  • in (or out of) play — in (or not in) the condition for continuing play
  • in the lap of luxury — If you say that someone lives in the lap of luxury, you mean that they live in conditions of great comfort and wealth.
  • income tax inspector — a person whose job is to assess individuals' income tax liability
  • incorporated company — a legally constituted company
  • indicated horsepower — the horsepower of a reciprocating engine as shown by an indicator record. Abbreviation: ihp, IHP.
  • industrial espionage — the stealing of technological or commercial research data, blueprints, plans, etc., as by a person in the hire of a competing company.
  • 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
  • initial program load — (operating system)   (IPL) The procedure used to (re-)start a computer system by copying the operating system kernel into main memory and running it. Part of the boot sequence.
  • insulin-coma therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
  • integration by parts — Mathematics. a method of evaluating an integral by use of the formula, ∫udv = uv − ∫vdu.
  • internal respiration — the exchange of oxygen and carbon dioxide between the blood or lymph and the body cells
  • interpersonal skills — skills that contribute to dealing successfully with other people
  • interpersonal theory — the theory that personality development and behavior disorders are related to and determined by relationships between persons.
  • james prescott joule — James Prescott, 1818–89, English physicist.
  • japanese pagoda tree — pagoda tree.
  • jasper national park — a national park in the Canadian Rockies in W Alberta, in SW Canada.
  • joseph of arimathaea — a member of the Sanhedrin who placed the body of Jesus in the tomb. Matt. 27:57–60; Mark 15:43.
  • keep a tight rein on — to control carefully; limit
  • 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)
  • laboratory equipment — apparatus for scientific research and experiments
  • law of superposition — Geology. a basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.
  • legal representation — representation by a lawyer
  • life-support machine — A life-support machine is the equipment that is used to keep a person alive when they are very ill and cannot breathe without help.
  • light the touchpaper — to do something that will cause much anger or excitement
  • linear extrapolation — Statistics, Mathematics. extrapolation using a linear equation to estimate the value of a variable or function outside the tabulated or observed range.
  • 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.
  • llywelyn ap iorwerth — called Llywelyn the Great. died 1240, prince of Gwynedd, N Wales (1194–1238), who extended his rule over most of Wales
  • lower layer protocol — (networking, protocol)   (LLP, or lower-layer protocol) Any protocol residing in OSI layers one to four. These protocols package, route, verify and transmit datagrams. A prime example would be TCP/IP. Lower layer protocols support the upper layer protocols.
  • lump in one's throat — the passage from the mouth to the stomach or to the lungs, including the pharynx, esophagus, larynx, and trachea.
  • lymphogranulomatosis — widespread infectious granuloma of the lymphatic system.
  • magnetoencephalogram — a record of the magnetic field of the brain. Abbreviation: MEG.
  • mail transport agent — Message Transfer Agent
  • marginal probability — (in a multivariate distribution) the probability of one variable taking a specific value irrespective of the values of the others
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