21-letter words containing a, d, e, l, n, t
- functional dependency — (database) Given a relation R (in a relational database), attribute Y of R is functionally dependent on attribute X of R and X of R functionally determines Y of R (in symbols R.X -> R.Y) if and only if each X in R has associated with it precisely one Y in R (at any one time). Attributes X and Y may be composite. This is very close to a function in the mathematical sense.
- fundamental frequency — the lowest frequency at which a medium will freely oscillate.
- gas blanketed storage — Gas blanketed storage is the use of gas to fill empty space in a storage tank.
- gentleman of the road — a highwayman.
- gideons international — an interdenominational lay society organized in 1899 to place Bibles in hotel rooms.
- goldbach's conjecture — the conjecture that every even number greater than two is the sum of two prime numbers
- greater sunda islands — a group of islands in the W Malay Archipelago, forming the larger part of the Sunda Islands: consists of Borneo, Sumatra, Java, and Sulawesi
- guaranteed scheduling — (algorithm) A scheduling algorithm used in multitasking operating systems that guarantees fairness by monitoring the amount of CPU time spent by each user and allocating resources accordingly.
- horns and halo effect — a tendency to allow one's judgement of another person, esp in a job interview, to be unduly influenced by an unfavourable (horns) or favourable (halo) first impression based on appearances
- identical proposition — a proposition in which the subject and predicate have the same meaning, as, “That which is mortal is not immortal.”.
- in-complete dominance — the appearance in a heterozygote of a trait that is intermediate between either of the trait's homozygous phenotypes.
- indigenous australian — another name for Aboriginal and Torres Strait Islander
- indo-australian plate — a major tectonic division of the earth's crust, comprising India and the Australian continent and adjacent suboceanic basins (the Tasman, South Australian, Mid-Indian, Cocos, and Australian basins); separated from the Eurasian Plate by the Java Trench, from the Pacific Plate by the Tonga-Kermadec Trench, and from the African Plate by a series of mid-ocean ridges (the Carlsberg, Mid-Indian, and Southeast Indian ridges).
- industrial revolution — (sometimes initial capital letters) the totality of the changes in economic and social organization that began about 1760 in England and later in other countries, characterized chiefly by the replacement of hand tools with power-driven machines, as the power loom and the steam engine, and by the concentration of industry in large establishments.
- international brigade — a military force that fought on the Republican side in the Spanish Civil War, consisting of volunteers (predominantly socialists and communists) from many countries
- isopropylideneacetone — mesityl oxide.
- japanese stranglehold — a wrestling hold in which an opponent's wrists are pulled to cross his or her arms in front of his or her own neck and exert pressure on the windpipe
- jordan-holder theorem — the theorem that for any two composition series of a group, an isomorphism exists between the corresponding quotient groups of each series, taken in some specified order.
- kekule von stradonitz — Friedrich August [free-drikh ou-goo st] /ˈfri drɪx ˈaʊ gʊst/ (Show IPA), 1829–96, German chemist.
- lactate dehydrogenase — an enzyme that catalyzes the interconversion of pyruvate and lactate, an important step in carbohydrate metabolism: elevated serum levels indicate injury to kidney, skeletal muscle, or heart muscle. Abbreviation: LDH.
- lafcadio's adventures — French Les Caves du Vatican. a novel (1914) by André Gide.
- language-based editor — language-sensitive editor
- lap and diagonal belt — A lap and diagonal belt is a strap attached to a seat in a vehicle that extends horizontally in front of the hips and diagonally from the outer shoulder across the chest. You fasten it across your body in order to prevent yourself being thrown out of the seat if there is a sudden movement or stop.
- lap and shoulder belt — a car seat belt
- law of thermodynamics — any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process is possible in which heat is absorbed from a reservoir at a single temperature and converted completely into mechanical work (second law of thermodynamics) and the principle that it is impossible to reduce the temperature of a system to absolute zero in a finite number of operations (third law of thermodynamics)
- lay at someone's door — a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- learning difficulties — difficulty experienced in reaching the average standard of people of the same age group as regards intellectual and cognitive skills and performance
- leave holding the bag — a container or receptacle of leather, plastic, cloth, paper, etc., capable of being closed at the mouth; pouch.
- lender of last resort — the central bank of a country with authority for controlling its banking system
- lexical decision task — an experimental task in which subjects have to decide as fast as possible whether a given letter string is a word
- lie at someone's door — a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- liquefied natural gas — a mixture of various gases, esp methane, liquefied under pressure for transportation and used as an engine fuel
- magnetic flux density — Also called magnetic flux density. a vector quantity used as a measure of a magnetic field. Symbol: B.
- magneto-optical drive — magneto-optical disk
- magnetofluid dynamics — magnetohydrodynamics.
- magnetoplasmadynamics — magnetohydrodynamics.
- magnificent riflebird — a bird of paradise, Craspedophora magnifica
- maidenhair spleenwort — an evergreen fern, Asplenium trichomanes, abundant in woody areas of the North Temperate Zone, having thickly clustered fronds.
- majority shareholding — a holding of more than half a company's shares
- male pattern baldness — a pattern of hair loss in males, dependent on the presence of the androgenic hormone testoterone, in which the scalp hair eventually covers only the back of the head and temples.
- male-pattern baldness — inherited baldness characterized by the gradual loss of hair from the front or top of the head
- maryland yellowthroat — (in former systems of nomenclature) the common yellowthroat, Geothlypis trichas, especially the eastern U.S. subspecies.
- mechanical solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
- mediterranean climate — a climate characterized by warm, dry summers and rainy winters
- medium access control — Media Access Control
- meter-kilogram-second — of or relating to the system of units in which the meter, kilogram, and second are the principal units of length, mass, and time. Abbreviation: mks, MKS.
- metropolitan district — any of the districts making up the metropolitan counties of England: since 1986 they have functioned as unitary authorities, forming the sole principal tier of local government. Each metropolitan district has an elected council responsible for education, social services, etc
- monochloroacetic acid — chloroacetic acid.
- motherwell and wishaw — a burgh in the Motherwell district, in S Scotland.
- muon-catalysed fusion — an experimental form of nuclear fusion in which hydrogen and deuterium muonic atoms are formed. Because the mass of the muon is much larger than that of the electron, the atoms are smaller, and the nuclei are close enough for fusion to occur