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15-letter words containing p, e, s, i

  • pulsejet engine — a jet engine equipped with valves that continuously open to admit air, then close during combustion, giving a pulsating thrust: used to power the V-1, a German buzz bomb, in World War II.
  • punctiliousness — extremely attentive to punctilios; strict or exact in the observance of the formalities or amenities of conduct or actions.
  • pure and simple — sheer, utter
  • purslane family — the plant family Portulacaceae, characterized by chiefly herbaceous plants having simple, often fleshy leaves, sometimes showy flowers, and capsular fruit, and including bitterroot, purslane, red maids, rose moss, and spring beauty.
  • push up daisies — any of various composite plants the flowers of which have a yellow disk and white rays, as the English daisy and the oxeye daisy.
  • put the nips in — to exert pressure on someone, esp in order to extort money
  • pyramid selling — Pyramid selling is a method of selling in which one person buys a supply of a particular product direct from the manufacturer and then sells it to a number of other people at an increased price. These people sell it on to others in a similar way, but eventually the final buyers are only able to sell the product for less than they paid for it.
  • pyrimidine base — any of a number of similar compounds having a basic structure that is derived from pyrimidine, including cytosine, thymine, and uracil, which are constituents of nucleic acids
  • pyrocrystalline — crystallized from a molten magma or highly heated solution.
  • quasi-dependent — relying on someone or something else for aid, support, etc.
  • quasi-permanent — existing perpetually; everlasting, especially without significant change.
  • quasi-spherical — having the form of a sphere; globular.
  • 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.
  • question period — a period of time set aside each day for members of parliament to question government ministers
  • 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.
  • 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.
  • reception class — A reception class is a class that children go into when they first start school at the age of four or five.
  • red spider mite — a plant-feeding mite, Panonychus ulmi, of the family Tetranychidae, which is a serious orchard pest
  • 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.
  • reference strip — a strip of film used to help calculate and monitor the exposing and processing of photographs
  • refuelling stop — a stop made so that fresh fuel can be supplied (to an aircraft, vehicle, etc)
  • refuse disposal — the act of disposing of rubbish and waste
  • registered port — (networking)   Any TCP or UDP port with a number in the range 1025 to 65535 (i.e. not a well-known port) that is registered with IANA.
  • registered post — a Post Office service by which compensation is paid for loss or damage to mail for which a registration fee has been paid
  • 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.
  • relief supplies — food, water, medication, clothes, etc given to people in need, esp in disaster areas
  • remand prisoner — a prisoner who is sent back into custody (or sometimes admitted to bail) to await trial or continuation of their trial
  • 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.
  • 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.
  • resist printing — a fabric-printing method in which a dye-resistant substance is applied to certain specified areas of the material prior to immersion in a dye bath and subsequently removed so as to permit the original hue to act as a pattern against the colored ground.
  • resolving power — Optics. the ability of an optical device to produce separate images of close objects.
  • respecification — the act of specifying.
  • responsibleness — answerable or accountable, as for something within one's power, control, or management (often followed by to or for): He is responsible to the president for his decisions.
  • restless spirit — a wandering spirit
  • 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.
  • retrospectively — with contemplation of past situations, events, etc.: You should examine your relationship retrospectively.
  • rhesus positive — relating to blood containing Rhesus antigen D
  • ribier (grapes) — a large, black variety of European or Californian table grape (Vitis vinifera)
  • rite de passage — rite of passage.
  • rite of passage — Anthropology. a ceremony performed to facilitate or mark a person's change of status upon any of several highly important occasions, as at the onset of puberty or upon entry into marriage or into a clan.
  • rumpelstiltskin — a dwarf in a German folktale who spins flax into gold for a young woman to meet the demands of the prince she has married, on the condition that she give him her first child or else guess his name: she guesses his name and he vanishes or destroys himself in a rage.
  • running repairs — repairs, as to a machine or vehicle, that are minor and can be made with little or no interruption in the use of the item
  • russell's viper — a large venomous snake, Vipera russelli, common in India and southeastern Asia, having three rows of large, black-edged brown spots on a light-brown body.
  • sales promotion — the methods or techniques for creating public acceptance of or interest in a product, usually in addition to standard merchandising techniques, as advertising or personal selling, and generally consisting of the offer of free samples, gifts made to a purchaser, or the like.
  • sarcoptic mange — mange caused by burrowing mites of the genus Sarcoptes.
  • say one's piece — If you say your piece, you say everything you want to say about a particular matter without being interrupted, although people may be wanting to express opposing views.
  • schlieffen plan — a plan intended to ensure German victory over a Franco-Russian alliance by holding off Russia with minimal strength and swiftly defeating France by a massive flanking movement through the Low Countries, devised by Alfred, Count von Schlieffen (1833–1913) in 1905
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