20-letter words containing p, r, o, m
- complex carbohydrate — a carbohydrate, as sucrose or starch, that consists of two or more monosaccharide units.
- composite photograph — a photograph formed by superimposing two or more separate photographs
- comprehensive school — a secondary school for children of all abilities from the same district
- compression ignition — ignition of engine fuel by the heat of air compressed in the cylinders into which the fuel is introduced.
- computability theory — (mathematics) The area of theoretical computer science concerning what problems can be solved by any computer. A function is computable if an algorithm can be implemented which will give the correct output for any valid input. Since computer programs are countable but real numbers are not, it follows that there must exist real numbers that cannot be calculated by any program. Unfortunately, by definition, there isn't an easy way of describing any of them! In fact, there are many tasks (not just calculating real numbers) that computers cannot perform. The most well-known is the halting problem, the busy beaver problem is less famous but just as fascinating.
- computer programming — the activity or profession of writing computer programs
- computer typesetting — a system for the high-speed composition of type by a device driven by punched paper tape or magnetic tape that has been processed by a computer
- computing dictionary — Free On-line Dictionary of Computing
- conformal projection — a map projection in which angles formed by lines are preserved: a map made using this projection preserves the shape of any small area.
- construction company — a business enterprise concerned with the construction of buildings, bridges, etc
- consumer price index — The consumer price index is an official measure of the rate of inflation within a country's economy. The abbreviation CPI is also used.
- contact metamorphism — localized metamorphism resulting from the heat of an igneous intrusion.
- contempt of congress — contempt of a U.S. Congressional body, as of an investigating committee, shown by a witness summoned or appearing before it.
- coordination complex — one of a number of complex compounds in which an atom or group of atoms is bound to the central atom by a shared pair of electrons supplied by the coordinated group and not by the central atom
- corruption of minors — the criminal offence of inducing people below the age of consent to engage in sexual activity
- council-manager plan — (in the US) a system of local government with an elected legislative council and an appointed administrative manager
- cream of tomato soup — a creamy soup made from tomatoes
- criminal proceedings — action taken in a court to bring a criminal prosecution against someone
- cross someone's palm — to give someone money
- cross someone's path — to meet or thwart someone
- darkfield microscope — kind of microscope
- decompartmentalizing — Present participle of decompartmentalize.
- decomposed petri net — (parallel) (DPN) A Petri net that has been split into multiple, interconnected nets. This makes it easier to analyse or run the net. DPNs are the basis of concurrency in ConC.
- deep vein thrombosis — Deep vein thrombosis is a serious medical condition caused by blood clots in the legs moving up to the lungs. The abbreviation DVT is also used.
- deep-vein thrombosis — a condition in which a blood clot forms in a vein deep beneath the skin, typically in the leg or pelvic area: Immobility and lack of exercise are risk factors for deep-vein thrombosis.
- demographic timebomb — a predicted shortage of school-leavers and consequently of available workers, caused by an earlier drop in the birth rate, resulting in an older workforce
- department of energy — the department of the U.S. federal government that sets forth and maintains the national energy policy, including energy conservation, environmental protection, etc. Abbreviation: DOE.
- department of health — government ministry for health matters
- descriptive geometry — the study of the projection of three-dimensional figures onto a plane surface
- desmopressin acetate — a vasopressin analogue, C 46 H 64 N 14 O 12 S 2 , used in the treatment of diabetes insipidus.
- diamondback terrapin — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
- diplomatic secretary — secretary (def 5).
- diplomatic-secretary — secretary (def 5).
- drum and bugle corps — a marching band of drum players and buglers.
- eastern roman empire — the eastern of the two empires created by the division of the Roman Empire in 395 ad
- education department — the department of a local authority that is concerned with education, or the government department concerned with education
- eight queens problem — eight queens puzzle
- electroencephalogram — A test or record of brain activity produced by electroencephalography.
- electromagnetic pump — a device for pumping liquid metals by placing a pipe between the poles of an electromagnet and passing a current through the liquid metal
- elephant in the room — an obvious truth deliberately ignored by all parties in a situation
- employer's liability — an employer's legal responsibility to pay damages to an employee who has been injured or who has contracted an illness because of the work he or she does
- environmental impact — the impact on the environment created by an industry, service, plan, or project
- equity of redemption — the right that a mortgager has in equity to redeem his property on payment of the sum owing, even though the sum is overdue
- evening primrose oil — an oil, obtained from the seeds of the evening primrose, that is claimed to stimulate the production of prostaglandins
- field ion microscope — a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen.
- field-ion microscope — a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen.
- first world problems — If you say that someone has First World problems, you mean that their problems are not really very important.
- flame-fusion process — Verneuil process.
- for sb's consumption — If you do or say something for a particular person's or group's consumption, you do or say it especially for them, although your private thoughts or plans may be very different.
- fore-topgallant mast — the spar or section of a spar forming the topgallant portion of a foremast on a ship.