15-letter words containing p, r, i, a
- query expansion — (information science) Adding search terms to a user's search. Query expansion is the process of a search engine adding search terms to a user's weighted search. The intent is to improve precision and/or recall. The additional terms may be taken from a thesaurus. For example a search for "car" may be expanded to: car cars auto autos automobile automobiles. The additional terms may also be taken from documents that the user has specified as being relevant; this is the basis for the "more like this" feature of some search engines. The extra terms can have positive or negative weights.
- rack-and-pinion — of or relating to a mechanism in which a rack engages a pinion: rack-and-pinion steering.
- radio programme — something that is broadcast on radio
- radio telephone — A radio telephone is a telephone which carries sound by sending radio signals rather than by using wires. Radio telephones are often used in cars.
- radio telescope — a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus.
- radio-telephone — a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
- radioautography — autoradiography.
- radiophosphorus — phosphorus 32.
- radiophotograph — a photograph or other image transmitted by radio.
- radioprotection — protection against radiation
- radioprotective — giving protection against the effects of radiation
- radiotelegraphy — the constructing or operating of radiotelegraphs.
- random sampling — a method of selecting a sample (random sample) from a statistical population in such a way that every possible sample that could be selected has a predetermined probability of being selected.
- range paralysis — Marek's disease.
- raster graphics — (graphics) Computer graphics in which an image is composed of an array of pixels arranged in rows and columns. Opposite: vector graphics.
- re-presentation — the act of representing.
- reaping machine — any of various machines for reaping grain, often fitted with a device for automatically throwing out bundles of the cut grain.
- reapportionment — the act of redistributing or changing the apportionment of something.
- reappropriation — the act of appropriating.
- rear projection — the projection of filmed action or stills on a translucent screen in front of which actors are lit and filmed: used to simulate an outdoor or location background in the studio.
- rear-projection — the projection of filmed action or stills on a translucent screen in front of which actors are lit and filmed: used to simulate an outdoor or location background in the studio.
- reception class — A reception class is a class that children go into when they first start school at the age of four or five.
- recoil-operated — employing the recoil force of an explosive projectile to prepare the firing mechanism for the next shot.
- reconceptualize — to form into a concept; make a concept of.
- recycling plant — a factory for processing used or abandoned materials
- red-back spider — a venomous spider, Latrodectus hasselti, of Australia and New Zealand, related to the black widow spider and having a bright red stripe on the back.
- reduplicatively — in a reduplicative manner
- refinery revamp — A refinery revamp is a change in the technology or processes used in a refinery.
- refugee capital — money from abroad invested, esp for a short term, in the country offering the highest interest rate
- refuse disposal — the act of disposing of rubbish and waste
- regular premium — A regular premium is money paid to buy insurance coverage in installments at particular time intervals, such as monthly or annually.
- reincorporation — the act of incorporating or the state of being incorporated.
- relapsing fever — one of a group of fevers characterized by relapses, occurring in many tropical countries, and caused by several species of spirochetes transmitted by several species of lice and ticks.
- remand prisoner — a prisoner who is sent back into custody (or sometimes admitted to bail) to await trial or continuation of their trial
- rendering plant — a factory where waste products and livestock carcasses are converted into industrial fats and oils (such as tallow, used to make soap) and other products (such as fertilizer)
- repeating group — (database) Any attribute that can have multiple values associated with a single instance of some entity. For example, a book might have multiple authors. Such a "-to-many" relationship might be represented in an unnormalised relational database as multiple author columns in the book table or a single author(s) column containing a string which was a list of authors. Converting this to "first normal form" is the first step in database normalisation. Each author of the book would appear in a separate row along with the book's primary key. Later nomalisation stages would move the book-author relationship into a separate table to avoid repeating other book attibutes (e.g. title, publisher) for each author.
- representations — statements of facts, true or alleged, esp set forth by way of remonstrance or expostulation
- representatives — a person or thing that represents another or others.
- reprivatization — the action or process of reprivatizing, or an instance thereof
- reservoir patch — A reservoir patch is an adhesive patch enclosing an amount of medicine. The patch is applied to the skin, and the medicine in it is delivered through a membrane into the skin and into the bloodstream.
- respecification — the act of specifying.
- retail politics — a political strategy or campaign style of meeting and speaking directly to as many voters as possible: New Hampshire is a state where retail politics are decisive. Not every candidate is good at retail politics.
- retirement plan — a systematic plan made and kept by an individual for setting aside income for his or her future retirement.
- retro-operative — affecting or operating on past events; retroactive
- retroperitoneal — of or relating to the area behind the abdominal lining, where organs such as the kidneys and bladder are located
- rheinland-pfalz — German name of Rhineland-Palatinate.
- ribier (grapes) — a large, black variety of European or Californian table grape (Vitis vinifera)
- rice-paper tree — an Asian shrub or small tree, Tetrapanax papyriferus, of the ginseng family, the pith of which is used in making rice paper.
- ridgefield park — a town in NE New Jersey.
- río de la plata — Rí·o de la [ree-aw th e lah] /ˈri ɔ ðɛ lɑ/ (Show IPA) an estuary on the SE coast of South America between Argentina and Uruguay, formed by the Uruguay and Paraná rivers, about 185 miles (290 km) long.