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16-letter words containing y, t, r, i

  • occupation layer — (on an archaeological site) a layer of remains left by a single culture, from which the culture can be dated or identified.
  • operating system — (operating system)   (OS) The low-level software which handles the interface to peripheral hardware, schedules tasks, allocates storage, and presents a default interface to the user when no application program is running. The OS may be split into a kernel which is always present and various system programs which use facilities provided by the kernel to perform higher-level house-keeping tasks, often acting as servers in a client-server relationship. Some would include a graphical user interface and window system as part of the OS, others would not. The operating system loader, BIOS, or other firmware required at boot time or when installing the operating system would generally not be considered part of the operating system, though this distinction is unclear in the case of a rommable operating system such as RISC OS. The facilities an operating system provides and its general design philosophy exert an extremely strong influence on programming style and on the technical cultures that grow up around the machines on which it runs. Example operating systems include 386BSD, AIX, AOS, Amoeba, Angel, Artemis microkernel, BeOS, Brazil, COS, CP/M, CTSS, Chorus, DACNOS, DOSEXEC 2, GCOS, GEORGE 3, GEOS, ITS, KAOS, Linux, LynxOS, MPV, MS-DOS, MVS, Mach, Macintosh operating system, Microsoft Windows, MINIX, Multics, Multipop-68, Novell NetWare, OS-9, OS/2, Pick, Plan 9, QNX, RISC OS, STING, System V, System/360, TOPS-10, TOPS-20, TRUSIX, TWENEX, TYMCOM-X, Thoth, Unix, VM/CMS, VMS, VRTX, VSTa, VxWorks, WAITS.
  • operating-system — the collection of software that directs a computer's operations, controlling and scheduling the execution of other programs, and managing storage, input/output, and communication resources. Abbreviation: OS.
  • opportunity cost — the money or other benefits lost when pursuing a particular course of action instead of a mutually-exclusive alternative: The company cannot afford the opportunity cost attached to policy decisions made by the current CEO.
  • opportunity shop — a shop selling second-hand goods for charitable funds
  • orbital velocity — the minimum velocity at which a body must move to maintain a given orbit.
  • organizationally — the act or process of organizing.
  • organoleptically — In an organoleptic manner.
  • ornithologically — In terms of ornithology.
  • orthographically — In an orthographical manner; using proper spelling, capitalization and grammar.
  • orthosympathetic — Of or pertaining to the sympathetic component of the autonomic nervous system.
  • otolaryngologist — Otorhinolaryngologist.
  • out of your mind — If you say that someone is out of their mind, you mean that they are mad or very foolish.
  • over-familiarity — thorough knowledge or mastery of a thing, subject, etc.
  • overall majority — If a political party wins an overall majority in an election or vote, they get more votes than the total number of votes or seats won by all their opponents.
  • overdramatically — In an overdramatic manner.
  • overexcitability — to excite too much.
  • paint-by-numbers — formulaic; showing no original thought or creativity
  • paradigmatically — of or relating to a paradigm.
  • parity operation — the mathematical operation of reversing the directions of all three space coordinates. Symbol: P.
  • particle physics — the branch of physics that deals with the properties and behavior of elementary particles.
  • parts of lindsey — an area in E England constituting a former administrative division of Lincolnshire
  • periodic tenancy — the letting of a dwelling for a repeated short term, as by the week, month, or quarter, with no end date
  • perpendicularity — vertical; straight up and down; upright.
  • personal liberty — the liberty of an individual to do his or her will freely except for those restraints imposed by law to safeguard the physical, moral, political, and economic welfare of others.
  • personal stylist — a person employed by a rich or famous client to offer advice on clothes, hairstyles, and other aspects of personal appearance
  • personality cult — deliberately cultivated adulation of a person, esp a political leader
  • personality test — an instrument, as a questionnaire or series of standardized tasks, used to measure personality characteristics or to discover personality disorders.
  • personality type — a cluster of personality traits commonly occurring together
  • peruvian rhatany — See under rhatany (def 1).
  • photoelectricity — electricity induced by electromagnetic radiation, as in certain processes, as the photoelectric and photovoltaic effects, photoconductivity, and photoionization.
  • photolithography — the technique or art of making photolithographs.
  • photoperiodicity — the response, as affecting growth or reproduction, of an organism to the length of exposure to light in a 24-hour period.
  • photozincography — a type of photoengraving using a sensitized zinc plate.
  • physical therapy — the treatment or management of physical disability, malfunction, or pain by exercise, massage, hydrotherapy, etc., without the use of medicines, surgery, or radiation.
  • phytoremediation — a process of decontaminating soil or water by using plants and trees to absorb or break down pollutants.
  • phytosuccivorous — feeding on sap, as certain sucking insects.
  • piezoelectricity — electricity, or electric polarity, produced by the piezoelectric effect.
  • pinot chardonnay — Chardonnay.
  • port phillip bay — a bay in SE Australia: the harbor of Melbourne. 31 miles (50 km) long; 25 miles (40 km) wide.
  • portrait gallery — a gallery where pictures are displayed
  • potential energy — the energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system.
  • poverty-stricken — suffering from poverty; extremely poor: poverty-stricken refugees.
  • powerfully built — (of a person, esp a man) big and physically strong, with large muscles
  • poynting theorem — the theorem that the rate of flow of electromagnetic energy through unit area is equal to the Poynting vector, i.e. the cross product of the electric and magnetic field intensities
  • pragmatic theory — the theory of truth that the truth of a statement consists in its practical consequences, especially in its agreement with subsequent experience.
  • prerevolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
  • primary election — primary (def 15a).
  • primary electron — in thermionics, any of the electrons falling on a body, distinguished from those emitted by it
  • primary industry — an industry, as agriculture, forestry, or fishing, that deals in obtaining natural materials.
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