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18-letter words containing a, c, u, d, t

  • curvature of field — a monochromatic aberration of a lens or other optical system in which the focal surface is curved, the refracted image of an object oriented perpendicular to the axis of the lens lying on a curved surface rather than in a plane perpendicular to the axis.
  • custodial sentence — a sentence given by a court that involves a term of imprisonment
  • customs and excise — Customs and Excise is a British government department which is responsible for collecting taxes on imported and exported goods. Compare Customs Service.
  • cut-and-waste code — (humour, programming)   Code that someone found online (e.g. in a blog) and copied and pasted into a product. The result is usually a lot of wasted time trying to track down obscure bugs from code that may have made sense in the original context but not in the new one. Also known as blog-driven development.
  • data communication — electronic transmission of information that has been encoded for storage and processing by computers.
  • death-valley curve — a curve on a graph showing how the capital of a new company plotted against time declines sharply as the venture capital is used up before income reaches predicted levels
  • deductive database — (database)   A combination of a conventional database containing facts, a knowledge base containing rules, and an inference engine which allows the derivation of information implied by the facts and rules. Commonly, the knowledge base is expressed in a subset of first-order logic and either a SLDNF or Datalog inference engine is used.
  • defense calculator — IBM 701
  • deficiency account — an account summarizing the financial condition of an individual or company in danger of bankruptcy.
  • dermot macmurrough — ?1110–71, king of Leinster, who, by enlisting the support of the English to win back his kingdom, was responsible for the English conquest of Ireland
  • descriptive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
  • destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
  • diamondback turtle — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
  • diatomaceous earth — an unconsolidated form of diatomite
  • dicalcium silicate — a component of cement, 2CaO⋅SiO 2 , also used to neutralize acid soils.
  • diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
  • dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
  • distance education — education in which students receive instruction over the Internet, from a video, etc., instead of going to school.
  • distribution class — form class
  • double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
  • dramatic monologue — a poetic form in which a single character, addressing a silent auditor at a critical moment, reveals himself or herself and the dramatic situation.
  • driver's education — high-school driving classes
  • dysfunctionalities — Plural form of dysfunctionality.
  • established church — a Church that is officially recognized as a national institution, esp the Church of England
  • euclid's algorithm — (algorithm)   (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
  • fettuccine alfredo — fettuccine in cream sauce with grated Parmesan cheese.
  • first class module — (programming)   A module that is a first class data object of the programming language, e.g. a record containing functions. In a functional language, it is standard to have first class programs, so program building blocks can have the same status.
  • fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
  • fuming nitric acid — a colorless, yellowish, or brownish fuming corrosive liquid, usually prepared from nitric acid by the addition of excess nitrogen dioxide: used in organic synthesis for nitration, and as an oxidizer in liquid propellants for rockets.
  • functional disease — a disease in which there is an abnormal change in the function of an organ, but no structural alteration in the tissues involved (opposed to organic disease).
  • galactic longitude — the angular distance in degrees measured eastward in the galactic plane from a radius drawn from the earth as center to the constellation Sagittarius.
  • gas-discharge tube — any tube in which an electric discharge takes place through a gas
  • good conduct medal — a medal awarded an enlisted person for meritorious behavior during the period of service.
  • graduated cylinder — a narrow, cylindrical container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids.
  • grandfather clause — U.S. History. a clause in the constitutions of some Southern states after 1890 intended to permit whites to vote while disfranchising blacks: it exempted from new literacy and property qualifications for voting those men entitled to vote before 1867 and their lineal descendants.
  • granulated surface — a roughened surface
  • handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
  • indecent behaviour — the offence of committing indecent acts
  • independent clause — a clause that can stand alone as a sentence, containing a subject and a predicate with a finite verb, as I was there in the sentence I was there when he arrived.
  • indolebutyric acid — a white or yellowish, crystalline, water-insoluble powder, C 12 H 13 O 2 N, a plant hormone similar to indoleacetic acid and used for the same purposes.
  • induction training — training intended to enable new staff and recruits to do their work
  • inductive relation — A relation R between domains D and E is inductive if for all chains d1 .. dn in D and e1 .. en in E,
  • indus civilization — an ancient civilization that flourished in the Indus River valley, from about 2500 to 1500 b.c.: extensive archaeological excavations at the main sites of Mohenjo-Daro and Harappa in Pakistan.
  • industrial vehicle — a vehicle designed for use in industry
  • infectious disease — illness spread by person to person
  • insurance adjuster — An insurance adjuster is the same as a claims adjuster.
  • integrated circuit — a circuit of transistors, resistors, and capacitors constructed on a single semiconductor wafer or chip, in which the components are interconnected to perform a given function. Abbreviation: IC.
  • justice department — the United States federal department for enforcing federal laws
  • magnetic induction — Also called magnetic flux density. a vector quantity used as a measure of a magnetic field. Symbol: B.
  • manufactured goods — products made by machine
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