20-letter words containing m, a, t, e
- contact metamorphism — localized metamorphism resulting from the heat of an igneous intrusion.
- context-free grammar — (grammar) (CFG) A grammar where the syntax of each constituent (syntactic category or terminal symbol) is independent of the symbols occuring before and after it in a sentence. A context-free grammar describes a context-free language. Context-free grammars can be expressed by a set of "production rules" or syntactic rules. For example, a language with symbols "a" and "b" that must occur in unequal numbers can be represented by the CFG: S → U | V U → TaU | TaT | UaT V → TbV | TbT | VbT T → aTbT | bTaT | ε meaning the top-level category "S" consists of either a "U" or a "V" and so on. The special category "ε" represents the empty string. This grammar is context-free because each rule has a single symbol on its left-hand side.
- coordination complex — one of a number of complex compounds in which an atom or group of atoms is bound to the central atom by a shared pair of electrons supplied by the coordinated group and not by the central atom
- counterdemonstration — a demonstration that is held in reaction to another demonstration
- court of st. james's — the British royal court: so called from St. James's Palace, London, the former scene of royal receptions.
- cream of tomato soup — a creamy soup made from tomatoes
- creative imagination — the faculty of imagining, or of forming mental images or concepts of what is not actually present to the senses.
- credit card terminal — A credit card terminal is a piece of equipment that you use to read the information on a credit card and charge a cost to it.
- crime against nature — Law. sodomy.
- crime and punishment — a novel (1866) by Feodor Dostoevsky.
- critical temperature — the temperature of a substance in its critical state. A gas can only be liquefied by pressure alone at temperatures below its critical temperature
- cross someone's path — to meet or thwart someone
- daylight saving time — Daylight Saving Time is a period of time in the summer when the clocks are set one hour forward, so that people can have extra light in the evening.
- daylight-saving time — the civil time observed when daylight saving is adopted in a country or community.
- de la madrid hurtado — Miguel [mee-gel] /miˈgɛl/ (Show IPA), 1934–2012, Mexican political leader: president 1982–88.
- 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.
- 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.
- demographic timebomb — a predicted shortage of school-leavers and consequently of available workers, caused by an earlier drop in the birth rate, resulting in an older workforce
- department of energy — the department of the U.S. federal government that sets forth and maintains the national energy policy, including energy conservation, environmental protection, etc. Abbreviation: DOE.
- department of health — government ministry for health matters
- desmopressin acetate — a vasopressin analogue, C 46 H 64 N 14 O 12 S 2 , used in the treatment of diabetes insipidus.
- 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
- development planning — the planning of the development of an area of land
- dewey decimal system — a frequently used system of library book classification and arrangement with ten main subject classes
- diammonium phosphate — a white, crystalline, water-soluble compound, (NH 4) 2 HPO 4 , used as fertilizer, in fire extinguishers, etc.
- diamond in the rough — a diamond in its natural state
- diamondback terrapin — 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
- 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.
- digital lempel ziv 1 — (algorithm) (DLZ1) A Lempel-Ziv compression algorithm which maps variable length input strings to variable length output symbols. During compression, the algorithm builds a dictionary of strings which is accessed by means of a hash table. Compression occurs when input data matches a string in the table and is replaced with the output symbol. DLZ1 is used on Digital Linear Tape.
- digital media player — Digital Technology. a portable electronic device or a software program that plays and stores digital audio or video files in various formats.
- dimethylanthranilate — a colorless or pale-yellow liquid, C 9 H 11 NO 2 , having a grape odor: used chiefly in perfumes, flavorings, and drugs.
- diplomatic secretary — secretary (def 5).
- diplomatic-secretary — secretary (def 5).
- direct memory access — (architecture) (DMA) A facility of some architectures which allows a peripheral to read and write memory without intervention by the CPU. DMA is a limited form of bus mastering.
- discretionary income — money for luxuries
- 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.
- distress merchandise — goods sold below the prevailing price in order to raise cash quickly or to meet some other financial emergency.
- documentary evidence — law: written
- domestic heating oil — a liquid petroleum product used to fuel residential building furnaces or boilers
- dry-bulb temperature — A dry-bulb temperature is the temperature of a dry surface in a vapor-gas environment.
- dun & bradstreet — an agency furnishing subscribers with information as to the financial standing and credit rating of businesses
- early warning system — Military. a network of radar installations designed to detect enemy aircraft or missiles in time for the effective deployment of defense systems.
- early-warning system — Military. a network of radar installations designed to detect enemy aircraft or missiles in time for the effective deployment of defense systems.
- eastern roman empire — the eastern of the two empires created by the division of the Roman Empire in 395 ad
- economic rationalism — an economic policy based on the efficiency of market forces, characterized by minimal government intervention, tax cuts, privatization, and deregulation of labour markets
- ecumenical patriarch — the patriarch of Constantinople, regarded as the highest dignitary of the Greek Orthodox Church.
- education department — the department of a local authority that is concerned with education, or the government department concerned with education