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16-letter words containing p, o, r, t, f

  • pacific sturgeon — a dark gray sturgeon, Acipenser transmontanus, inhabiting marine and fresh waters along the northwestern coast of North America, valued as a food and sport fish.
  • packing fraction — Physics. a measure of the stability of an atomic nucleus, equal to 10 4 multiplied by the mass defect and divided by the mass number.
  • parallel fortran — (language)   (Pfortran) Extensions to Fortran by Ridgway Scott <[email protected]> of Houston University. Pfortran provides a shared memory SIMD model on message passing computers. It was under development in 1994.
  • parrot's-feather — a South American water milfoil, Myriophyllum aquaticum, having hairlike pinnate leaves, widely cultivated as an aquarium plant.
  • partial fraction — one of the fractions into which a given fraction can be resolved, the sum of such simpler fractions being equal to the given fraction: Partial fractions of 5/(x2−x) are 5/(x−1) and −5/x.
  • partial function — A function which is not defined for all arguments of its input type. E.g. f(x) = 1/x if x /= 0. The opposite of a total function. In denotational semantics, a partial function f : D -> C may be represented as a total function ft : D' -> lift(C) where D' is a superset of D and ft x = f x if x in D ft x = bottom otherwise where lift(C) = C U bottom. Bottom (LaTeX \perp) denotes "undefined".
  • parts of lindsey — an area in E England constituting a former administrative division of Lincolnshire
  • perforated ulcer — an ulcer that bursts through the stomach wall and leaks food and gastric juices into the abdominal cavity
  • performance test — a test requiring little or no use of language, the test materials being designed to elicit manual or behavioral responses rather than verbal ones.
  • period furniture — furniture that was made during a particular period in time
  • permafrost table — the variable surface constituting the upper limit of permafrost. Compare frostline (def 2).
  • personal effects — belongings
  • petrified forest — a national park in E Arizona, containing petrified coniferous trees about 170 000 000 years old
  • phosphor fatigue — screen saver
  • plaster of paris — calcined gypsum in white, powdery form, used as a base for gypsum plasters, as an additive of lime plasters, and as a material for making fine and ornamental casts: characterized by its ability to set rapidly when mixed with water.
  • platform-balance — a scale with a platform for holding the items to be weighed.
  • portfolio worker — a person in portfolio employment
  • post-reformation — the act of reforming; state of being reformed.
  • powerfully built — (of a person, esp a man) big and physically strong, with large muscles
  • powerpc platform — (architecture, standard)   (PPCP, PReP - PowerPC Reference Platform, formerly CHRP - Common Hardware Reference Platform) An open system standard, designed by IBM, intended to ensure compatibility among PowerPC-based systems built by different companies. The PReP standard specifies the PCI bus, but will also support ISA, MicroChannel and PCMCIA. PReP-compliant systems will be able to run the Macintosh OS, OS/2, WorkplaceOS, AIX, Solaris, Taligent and Windows NT. IBM systems will (of course) be PReP-compliant. Apple's first PowerPC Macintoshes will not be compliant, but future ones may be.
  • preference stock — preferred stock.
  • prespecification — the act of specifying.
  • proficiency test — an exam which test how proficient or skilled someone is in a particular activity, field of study, language, etc
  • proof of concept — the stage during the development of a product when it is established that the product will function as intended
  • proof of postage — a document, such as a receipt, etc, that proves that you have posted or mailed something
  • put a foot wrong — to make a mistake
  • put your feet up — If you put your feet up, you relax or have a rest, especially by sitting or lying with your feet supported off the ground.
  • ramen profitable — If a startup business is ramen profitable, it is barely profitable, just enough to allow the founder to live on the cheapest diet.
  • rape of the lock — a mock-epic poem (1712) by Alexander Pope.
  • reflection plane — a plane through a crystal that divides the crystal into two halves that are mirror images of each other.
  • score points off — to gain an advantage at someone else's expense
  • self-approbation — approval; commendation.
  • self-deprecation — belittling or undervaluing oneself; excessively modest.
  • self-deprecatory — belittling or undervaluing oneself; excessively modest.
  • self-deprivation — the act of depriving.
  • self-description — a statement, picture in words, or account that describes; descriptive representation.
  • self-exculpatory — intended to excuse oneself from blame or guilt
  • self-explanatory — explaining itself; needing no explanation; obvious.
  • self-improvement — improvement of one's mind, character, etc., through one's own efforts.
  • self-preparation — a proceeding, measure, or provision by which one prepares for something: preparations for a journey.
  • self-propagating — to cause (an organism) to multiply by any process of natural reproduction from the parent stock.
  • serpentine front — a front, as of a chest of drawers, having a horizontal compound curve with a convex section between two concave ones.
  • shaft horsepower — the horsepower delivered to the driving shaft of an engine, as measured by a torsion meter. Abbreviation: shp, SHP.
  • soft pornography — soft-core pornography.
  • software package — bundle of files to execute computer program
  • speak for itself — be self-evident
  • spreading factor — a substance, as hyaluronidase, that promotes the diffusion of a material through body tissues
  • stonecrop family — the plant family Crassulaceae, characterized by succulent herbaceous plants and shrubs with simple, fleshy leaves, clusters of small flowers, and dry, dehiscent fruit, and including hen-and-chickens, houseleek, kalanchoe, live-forever, orpine, sedum, and stonecrop.
  • street performer — busker or entertainer in a public place
  • superfecundation — the fertilization of two or more ova discharged at the same ovulation by successive acts of sexual intercourse.
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