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20-letter words containing a, e, c, i, d, l

  • cylinder head gasket — (in an automobile engine) a gasket placed between the cylinder and the cylinder heads to avoid leaks of coolant and compression
  • darkfield microscope — kind of microscope
  • data dictionary file — (database)   (DDF) A set of files describing the structure of a database file. DDFs define database tables and include information about file locations, field layouts and indexes. DDFs are the standard method for defining field and index characteristics for Btrieve files.
  • death of ivan ilyich — a short novel (1884) by Leo Tolstoy.
  • declarative language — (language)   Any relational language or functional language. These kinds of programming language describe relationships between variables in terms of functions or inference rules, and the language executor (interpreter or compiler) applies some fixed algorithm to these relations to produce a result. Declarative languages contrast with imperative languages which specify explicit manipulation of the computer's internal state; or procedural languages which specify an explicit sequence of steps to follow. The most common examples of declarative languages are logic programming languages such as Prolog and functional languages like Haskell. See also production system.
  • decompartmentalizing — Present participle of decompartmentalize.
  • dementia pugilistica — chronic traumatic encephalopathy.
  • democratic socialism — socialism, or a modified form of socialism, achieved by a gradual transition by and under democratic political processes.
  • deontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
  • determinate cleavage — cell division in a fertilized or unfertilized egg resulting in daughter cells that are no longer able to produce a complete embryo by themselves
  • devil's bit scabious — a similar and related Eurasian marsh plant, Succisa pratensis
  • dewey decimal system — a frequently used system of library book classification and arrangement with ten main subject classes
  • dialectical theology — a form of neoorthodox theology emphasizing the infinite tensions, paradoxes, and basic ambiguities inherent in Christian existence, and holding, against rationalism, that God is unknowable to humans except through divine grace and revelation.
  • dichloroethyl formal — a colorless liquid, C 5 H 10 O 2 Cl 2 , used chiefly as a solvent and in the manufacture of certain synthetic rubbers.
  • dickless workstation — (abuse)   Extremely pejorative hackerism for "diskless workstation".
  • dictionary catalogue — a catalogue of the authors, titles, and subjects of books in one alphabetical sequence
  • diels-alder reaction — the reaction in which a conjugated diene combines with a double or triple bond of a given compound to form a ring of six carbon atoms.
  • difference amplifier — A difference amplifier is a device that amplifies the difference between two inputs, rejecting any signals common to both.
  • differential pricing — a situation in which different prices are charged for the same product or service
  • digital data service — (communications)   (DDS) The class of service offered by telecommunications companies for transmitting digital data as opposed to voice.
  • digital service unit — data service unit
  • diplomatic secretary — secretary (def 5).
  • diplomatic-secretary — secretary (def 5).
  • dirac delta function — delta function.
  • directional drilling — a method of drilling for oil in which the well is not drilled vertically, as when a number of wells are to be drilled from a single platform to reach different areas of an oil field
  • disability allowance — an amount of money paid by the government to people who are unable to work because of a disability. This is a general term or, in the UK, a shorter way of referring to what is officially called the Disability Living Allowance
  • disability insurance — insurance providing income to a policyholder who is disabled and cannot work.
  • disciplinary hearing — a hearing at which the conduct of a member of an organization, profession etc is examined and a punishment may be handed down
  • discounted cash flow — a technique for appraising an investment that takes into account the different values of future returns according to when they will be received
  • displacement current — the rate of change, at any point in space, of electric displacement with time.
  • displacement tonnage — the number of long tons of water displaced by a vessel, light or load displacement being specified.
  • distribution channel — trade: retailer
  • distributive lattice — (theory)   A lattice for which the least upper bound (lub) and greatest lower bound (glb) operators distribute over one another so that a lub (b glb c) == (a lub c) glb (a lub b) and vice versa. ("lub" and "glb" are written in LateX as \sqcup and \sqcap).
  • diverticular disease — any disease of the colon involving the presence of diverticula
  • domestic heating oil — a liquid petroleum product used to fuel residential building furnaces or boilers
  • double-trailer truck — tandem trailer (def 1).
  • dual in-line package — (hardware)   (DIL, DIP) The most common type of package for small and medium scale integrated circuits, with up to about 48 pins. The pins hang vertically from the two long edges of the rectangular package, spaced at intervals of 0.1 inch. The pins fit through holes in the circuit board to which they are soldered or into a socket.
  • duck-billed dinosaur — hadrosaur.
  • duck-billed platypus — platypus.
  • educational quotient — a numerical measure of an educational system's effectiveness, based on standardized test scores, graduation rate, and other factors.
  • electoral boundaries — the way that a country or area is divided for the purposes of voting in an election
  • electrocardiographic — Of or pertaining to an electrocardiogram (ECG) or electrocardiograph.
  • electrohydrodynamics — (physics) the study of the dynamics of electrically conducting fluid.
  • elementary education — the first six to eight years of a child's education
  • essential amino acid — an amino acid that cannot be synthesized in the body and is thus an essential component of the diet
  • essential fatty acid — any fatty acid required by the body in manufacturing prostaglandins, found in such foods as oily fish and nuts
  • european social fund — one of the four Structural Funds of the European Union which aims to support employment and the economic and social well-being of EU member countries
  • explication de texte — a close textual analysis of a literary work
  • federal constitution — Constitution of the United States.
  • file descriptor leak — (programming)   (Or "fd leak" /F D leek/) A kind of programming bug analogous to a core leak, in which a program fails to close file descriptors ("fd"s) after file operations are completed, and thus eventually runs out of them. See leak.
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