15-letter words containing p, o, i, r
- pulchritudinous — physically beautiful; comely.
- pulmobranchiate — possessing a pulmobranch
- purified cotton — bleached and sterilized cotton from which the gross impurities, such as the seeds and waxy matter, have been removed: used for surgical dressings, tampons, etc
- put on the ritz — ostentatious or pretentious display.
- pyrocrystalline — crystallized from a molten magma or highly heated solution.
- pyroelectricity — electrification or electrical polarity produced in certain crystals by temperature changes.
- pyrogallic acid — pyrogallol
- pyrogallic-acid — a white, crystalline, water-soluble, poisonous, solid, phenolic compound, C 6 H 3 (OH) 3 , obtained by heating gallic acid and water: used chiefly as a developer in photography, as a mordant for wool, in dyeing, and in medicine in the treatment of certain skin conditions.
- pyrometric bead — (in a kiln) a ball of material that indicates by changing color that a certain temperature has been reached.
- pyrometric cone — (in a kiln) a triangular piece of material that indicates by bending or melting that a certain temperature has been reached.
- pyrotechnically — in a pyrotechnical manner
- pyrrhic victory — a victory or goal achieved at too great a cost.
- quadripartition — A division into four parts.
- quadruplication — one of four copies or identical items, especially copies of typewritten material.
- 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
- 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.
- re-presentation — the act of representing.
- 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.
- reception clerk — a person who works in a hotel at the desk or office where guests can books rooms or ask the staff questions
- 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.
- reference point — a point used to find or describe the location of something
- 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
- reincorporation — the act of incorporating or the state of being incorporated.
- remand prisoner — a prisoner who is sent back into custody (or sometimes admitted to bail) to await trial or continuation of their trial
- 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
- reprivatization — the action or process of reprivatizing, or an instance thereof
- reproducibility — to make a copy, representation, duplicate, or close imitation of: to reproduce a picture.
- 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.
- resolving power — Optics. the ability of an optical device to produce separate images of close objects.