0%

14-letter words containing d, e, c, r

  • period costume — the attire typical of a particular period in time
  • periodic group — (database)   (PE) Groups of logically related fields which occur multiple times within a group. Periodic groups are a non-relational technique. An example of a PE would be for storing the history of a person's name changes, where name was kept in logically related fields such as surname, first name and middle name - with the person having changed their name more than once.
  • periodic table — a table illustrating the periodic system, in which the chemical elements, formerly arranged in the order of their atomic weights and now according to their atomic numbers, are shown in related groups.
  • peroxy-radical — the bivalent group –O 2 –, derived from hydrogen peroxide.
  • photoelectrode — an electrode that, following the absorption of light, can initialize electrochemical transformations
  • photorecording — the act of making photographic records, especially of documents.
  • photoreduction — a reduction reaction induced by light.
  • picture editor — someone whose job is to deal with the photographs and illustrations for a newspaper or magazine
  • picture spread — an act or instance of spreading: With a spread of her arms the actress acknowledged the applause.
  • picture window — a large window in a house, usually dominating the room or wall in which it is located, and often designed or placed to present an attractive view.
  • pitch cylinder — (in a gear or rack) an imaginary surface forming a plane (pitch plane) a cylinder (pitch cylinder) or a cone or frustrum (pitch cone) that moves tangentially to a similar surface in a meshing gear so that both surfaces travel at the same speed.
  • polar distance — codeclination.
  • policy adviser — a person who provides ideas or plans that are used by an organization or government as a basis for making decisions
  • polyacrylamide — a white, solid, water-soluble polymer of acrylamide, used in secondary oil recovery, as a thickening agent, a flocculant, and an absorbent, and to separate macromolecules of different molecular weights.
  • polysaccharide — a carbohydrate, as starch, inulin, or cellulose, containing more than three monosaccharide units per molecule, the units being attached to each other in the manner of acetals, and therefore capable of hydrolysis by acids or enzymes to monosaccharides.
  • potluck dinner — a meal consisting of whatever food happens to be available without special preparation
  • powder compact — make-up: small case of foundation
  • pre-accredited — to ascribe or attribute to (usually followed by with): He was accredited with having said it.
  • pre-calculated — to determine or ascertain by mathematical methods; compute: to calculate the velocity of light.
  • pre-discussion — an act or instance of discussing; consideration or examination by argument, comment, etc., especially to explore solutions; informal debate.
  • preadolescence — the period preceding adolescence, usually designated as the years from 10 to 13.
  • precision-made — made to precise specifications
  • preconcertedly — in a preconcerted or preplanned manner
  • preconditioned — something that must come before or is necessary to a subsequent result; condition: a precondition for a promotion.
  • predicate noun — a noun used in the predicate with a copulative verb or a factitive verb and having the same referent as the subject of the copulative verb or the direct object of the factitive verb, as in She is the mayor or They elected her mayor.
  • predictability — consistent repetition of a state, course of action, behavior, or the like, making it possible to know in advance what to expect: The predictability of their daily lives was both comforting and boring.
  • predictiveness — of or relating to prediction: losing one's predictive power.
  • prepsychedelic — describing the period before the psychedelic era
  • press cupboard — a cupboard of the 16th and 17th centuries having an overhanging top above a recessed cabinet, beneath which is a section of drawers or cabinets.
  • pride of china — the chinaberry, Melia azedarach.
  • pride of place — the highest or most outstanding position; first place.
  • procaine amide — a white, crystalline compound, C 1 3 H 2 1 ON 3 , used in the treatment of cardiac arrhythmias.
  • processed peas — peas that have been treated or prepared by a special method, esp in order to preserve them
  • procrastinated — to defer action; delay: to procrastinate until an opportunity is lost.
  • producer goods — goods, such as raw materials and machines, that are used in producing other goods
  • productiveness — having the power of producing; generative; creative: a productive effort.
  • productivities — the quality, state, or fact of being able to generate, create, enhance, or bring forth goods and services: The productivity of the group's effort surprised everyone.
  • project leader — leader of a task or programme
  • promenade deck — an upper deck or part of a deck on a passenger ship where passengers can stroll, often covered with a light shade deck.
  • propaedeutical — relating to preliminary instruction; introductory
  • propenoic acid — systematic name of acrylic acid
  • protected mode — An operating mode of Intel 80x86 processors. The opposite of real mode. The Intel 8088, Intel 8086, Intel 80188 and Intel 80186 had only real mode, processors beginning with the Intel 80286 feature a second mode called protected mode. In real mode, addresses are generated by adding an address offset to the value of a segment register shifted left four bits. As the segment register and address offset are 16 bits long this results in a 20-bit address. This is the origin of the one megabyte (2^20) limit in real mode. There are 4 segment registers on processors before the Intel 80386. The 80386 introduced two more segment registers. Which segment register is used depends on the instruction, on the addressing mode and of an optional instruction prefix which selects the segment register explicitly. In protected mode, the segment registers contain an index into a table of segment descriptors. Each segment descriptor contains the start address of the segment, to which the offset is added to generate the address. In addition, the segment descriptor contains memory protection information. This includes an offset limit and bits for write and read permission. This allows the processor to prevent memory accesses to certain data. The operating system can use this to protect different processes' memory from each other, hence the name "protected mode". While the standard register set belongs to the CPU, the segment registers lie "at the boundary" between the CPU and MMU. Each time a new value is loaded into a segment register while in protected mode, the corresponding descriptor is loaded into a descriptor cache in the (Segment-)MMU. On processors before the Pentium this takes longer than just loading the segment register in real mode. Addresses generated by the CPU (which are segment offsets) are passed to the MMU to be checked against the limit in the segment descriptor and are there added to the segment base address in the descriptor to form a linear address. On a 80386 or later, the linear address is further processed by the paged MMU before the result (the physical address) appears on the chip's address pins. The 80286 doesn't have a paged MMU so the linear address is output directly as the physical address. The paged MMU allows for arbitrary remapping of four klilobyte memory blocks (pages) through a translation table stored in memory. A few entries of this table are cached in the MMU's Translation Lookaside Buffer to avoid excessive memory accesses. After processor reset, all processors start in real mode. Protected mode has to be enabled by software. On the 80286 there exists no documented way back to real mode apart from resetting the processor. Later processors allow switching back to real mode by software. Software which has been written or compiled to run in protected mode must only use segment register values given to it by the operating system. Unfortunately, most application code for MS-DOS, written before the 286, will fail in protected mode because it assumes real mode addressing and writes arbitrary values to segment registers, e.g. in order to perform address calculations. Such use of segment registers is only really necessary with data structures that are larger than 64 kilobytes and thus don't fit into a single segment. This is usually dealt with by the huge memory model in compilers. In this model, compilers generate address arithmetic involving segment registers. A solution which is portable to protected mode with almost the same efficiency would involve using a table of segments instead of calculating new segment register values ad hoc. To ease the transition to protected mode, Intel 80386 and later processors provide "virtual 86 mode".
  • provident club — a hire-purchase system offered by some large retail organizations
  • provincialised — to make provincial in character.
  • pseudo-archaic — marked by the characteristics of an earlier period; antiquated: an archaic manner; an archaic notion.
  • pseudo-generic — of, applicable to, or referring to all the members of a genus, class, group, or kind; general.
  • pseudoscorpion — any of several small arachnids of the order Chelonethida that resemble a tailless scorpion and that feed chiefly on small insects.
  • puncture wound — injury: perforation
  • purchase order — document requesting to buy sth
  • pure democracy — a form of democracy in which the laws and policies are made directly by the citizens rather than by representatives.
Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?