20-letter words containing a, d, u, c
- counterdemonstration — a demonstration that is held in reaction to another demonstration
- crime and punishment — a novel (1866) by Feodor Dostoevsky.
- crude oil evaluation — Crude oil evaluation is the process of assessing the chemical and physical properties of crude oil, against particular standards.
- cut the gordian knot — to find a quick, bold solution for a perplexing problem
- cycloidal propulsion — propulsion of a vessel by propellers of controllable pitch that steer as well as propel.
- 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.
- declaratory judgment — a judgment that merely decides the rights of parties in a given transaction, situation, or dispute but does not order any action or award damages.
- dementia pugilistica — chronic traumatic encephalopathy.
- devil's bit scabious — a similar and related Eurasian marsh plant, Succisa pratensis
- dictionary catalogue — a catalogue of the authors, titles, and subjects of books in one alphabetical sequence
- digital service unit — data service unit
- dirac delta function — delta function.
- directory user agent — (DUA) The software that accesses the X.500 Directory Service on behalf of the directory user. The directory user may be a person or another software element.
- disability insurance — insurance providing income to a policyholder who is disabled and cannot work.
- 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.
- disruptive discharge — the sudden, large increase in current through an insulating medium resulting from complete failure of the medium under electrostatic stress.
- distributed practice — learning with reasonably long intervals between separate occasions of learning
- 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).
- district of columbia — a federal area in the E United States, on the Potomac, coextensive with the federal capital, Washington. 69 sq. mi. (179 sq. km). Abbreviation: DC (for use with zip code), D.C.
- diverticular disease — any disease of the colon involving the presence of diverticula
- documentary evidence — law: written
- double-aspect theory — a monistic theory that holds that mind and body are not distinct substances but merely different aspects of a single substance
- double-trailer truck — tandem trailer (def 1).
- drum and bugle corps — a marching band of drum players and buglers.
- 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.
- due process (of law) — the course of legal proceedings established by the legal system of a nation or state to protect individual rights
- education department — the department of a local authority that is concerned with education, or the government department concerned with education
- 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
- elementary education — the first six to eight years of a child's education
- 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
- factor of production — any instrument, agent, etc., employed in the production of goods and services.
- faculty of advocates — the college or society of advocates in Scotland
- federal constitution — Constitution of the United States.
- frequency modulation — FM.
- friedrich max müller — Friedrich Max [free-drik maks;; German free-drikh mahks] /ˈfri drɪk mæks;; German ˈfri drɪx mɑks/ (Show IPA), 1823–1900, English Sanskrit scholar and philologist born in Germany.
- fulminating compound — a fulminate.
- fuming sulfuric acid — an oily, hygroscopic, corrosive liquid, H 2 S 2 O 7 , that, depending on purity, is colorless or dark brown: used chiefly as a dehydrating agent in the manufacture of explosives and as a sulfating or sulfonating agent in the manufacture of dyes.
- fundamental constant — a physical constant, such as the gravitational constant or speed of light, that plays a fundamental role in physics and chemistry and usually has an accurately known value
- fundamental particle — elementary particle.
- fundamental research — research carried out to deepen understanding of the fundamental or basic principles of something
- fundamental sequence — an infinite sequence, x 1 , x 2 , …, whose terms are points in Ek, in which there exists a point y such that the limit as n goes to infinity of xn = y if and only if for every ε>0, there exists a number N such that i > N and j > N implies | xi − xj |< ε. Also called Cauchy sequence, convergent sequence. Compare complete (def 10b).
- guarded horn clauses — (language) (GHC) A parallel dialect of Prolog by K. Ueda in which each clause has a guard. GHC is similar to Parlog. When several clauses match a goal, their guards are evaluated in parallel and the first clause whose guard is found to be true is used and others are rejected. It uses committed-choice nondeterminism. See also FGHC, KL1.
- guillaume de machaut — Guillaume de [French gee-yohm duh] /French giˈyoʊm də/ (Show IPA), Guillaume de Machaut.
- hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
- harvard architecture — (architecture) A computer architecture in which program instructions are stored in different memory from data. Each type of memory is accessed via a separate bus, allowing instructions and data to be fetched in parallel. Contrast: von Neumann architecture.