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23-letter words containing a, d, p, t

  • extracorporeal dialysis — the filtering of circulating blood through a semipermeable membrane in an apparatus
  • fear-driven development — (jargon, humour)   When project management adds more pressure (fires someone or something). A play on test-driven development.
  • fendalton shopping cart — a four-wheel drive recreational vehicle
  • frozen food compartment — a compartment of a refrigerator or fridge-freezer for the storage of frozen food
  • greater spotted dogfish — a cat shark found in the Northeast Atlantic, Scyliorhinus stellaris
  • hate-driven development — (programming, humour)   A play on test-driven development for use when a piece of code is not necessarily broken but you hate the way it is written so much that you feel compelled to rewrite it.
  • have struck/hit paydirt — If you say that someone has struck paydirt or has hit paydirt, you mean that they have achieved sudden success or gained a lot of money very quickly.
  • higher national diploma — a work-related higher education qualification, taking two years full-time.
  • indeterminacy principle — uncertainty principle.
  • industrial psychologist — a person who studies human behaviour and cognitive processes in relation to the working environment
  • keep sth under your hat — If you tell someone to keep a piece of information under their hat, you are asking them not to tell anyone else about it.
  • lead replacement petrol — a less toxic fuel introduced in 2000 for cars requiring leaded petrol
  • lead up the garden path — a plot of ground, usually near a house, where flowers, shrubs, vegetables, fruits, or herbs are cultivated.
  • liquefied petroleum gas — a mixture of various petroleum gases, esp propane and butane, stored as a liquid under pressure and used as an engine fuel
  • multimedia compact disc — (storage)   (MMCD) A CD-ROM standard for storing 4.7 GB of data including video. MMCD is being developed by a large numer of computer manufacturers and is expected to be shipped in late 1996 or early 1997. Initially it will be aimed at the consumer market, then perhaps in CD-ROM format for computers, and maybe later on erasble CD.
  • multiplicative identity — an identity that when used to multiply a given element in a specified set leaves that element unchanged, as the number 1 for the real-number system.
  • on-line data processing — the storing or processing of data on a computer using the internet
  • painting and decorating — interior decoration
  • parasexual reproduction — reproduction by recombination of genes from genetically dissimilar nuclei within binucleate or multinucleate cells, as in filamentous fungi.
  • parkinson's law of data — "Data expands to fill the space available for storage"; buying more memory encourages the use of more memory-intensive techniques. It has been observed over the last 10 years that the memory usage of evolving systems tends to double roughly once every 18 months. Fortunately, memory density available for constant dollars also tends to double about once every 12 months (see Moore's Law); unfortunately, the laws of physics guarantee that the latter cannot continue indefinitely.
  • parliamentary candidate — sb standing for election to government
  • parliamentary democracy — a system of government in which people elect representatives to a parliament to make laws, for example Canada and the UK
  • partial differentiation — the process of finding one of the partial derivatives of a function of several variables.
  • participating preferred — a preferred stock entitled to its fixed dividend and to additional ones on a specified basis after payment of dividends on common stock.
  • participatory democracy — individual participation by citizens in political decisions and policies that affect their lives, especially directly rather than through elected representatives.
  • past one's sell-by date — If you say that someone or something is past their sell-by date, you mean they are no longer effective, interesting, or useful.
  • patient confidentiality — the law that a doctor or medical practitioner cannot reveal anything said to them by their patients during consultation or treatment
  • pentagonal dodecahedron — pyritohedron.
  • percentage distribution — a frequency distribution is which individual frequencies are shown as a percentage of the total frequencies
  • performance-related pay — salary based on individual assessment
  • pest control department — the local government department responsible for controlling such pests as rats and mice
  • philadelphia pepper pot — pepper pot (def 1).
  • photoelectric magnitude — the magnitude of a star determined using a photometer plus a filter to select light or other radiation of the desired wavelength
  • plain old documentation — (text)   (pod, occasionally "POD") A simple markup language used to embed documentation, literate programming-style, in Perl programs. Pod readers and converters are part of the standard Perl distribution and the documentation provided with Perl is all in pod format.
  • plan position indicator — a radarscope on which an object reflecting radar waves shows its bearing and distance from the radar detector by causing a spot of light to appear on a screen that represents a map of the area around the detector. Abbreviation: PPI.
  • polybrominated biphenyl — PBB.
  • portable object adapter — (architecture)   (POA) Part of the CORBA architecture.
  • positive discrimination — special opportunities
  • postcode discrimination — discrimination on the basis of the area where someone lives, with relation to employment, credit rating, etc
  • potassium acid tartrate — cream of tartar.
  • precipitation hardening — a process in which alloys are strengthened by the formation, in their lattice, of a fine dispersion of one component when the metal is quenched from a high temperature and aged at an intermediate temperature
  • preclinical safety data — Preclinical safety data is information about the safety of a medication that is assessed before clinical trials.
  • presidential government — a system of government in which the powers of the president are constitutionally separate from those of the legislature.
  • private limited company — a company whose shares can be bought by the public
  • product differentiation — the real or illusory distinction between competing products in a market
  • productivity bargaining — the process of reaching an agreement (productivity agreement) through collective bargaining whereby the employees of an organization agree to changes which are intended to improve productivity in return for an increase in pay or other benefits
  • professional misconduct — a violation of the rules or boundaries set by the governing body of a profession
  • profit and loss account — income account (def 2).
  • psychomotor retardation — a generalized slowing of psychological and physical activity, frequently occurring as a symptom of severe depression.
  • publicly-quoted company — a company whose shares are traded on a stock exchange
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