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21-letter words containing t, e, n, y, a

  • degradation of energy — the principle that during any irreversible process the total energy available to do work decreases.
  • designated employment — (in Britain) any of certain kinds of jobs reserved for handicapped workers under the Disabled Persons (Employment) Act 1944
  • developmental biology — the study of the development of multicellular organisms, including the study of the earliest stages of embryonic structure and tissue differentiation
  • dictionary definition — the meaning of a word as given in a dictionary or dictionaries
  • differential analyzer — an analog computer designed for solving certain differential equations.
  • differential geometry — the branch of mathematics that deals with the application of the principles of differential and integral calculus to the study of curves and surfaces.
  • differential topology — the branch of topology that studies the properties of differentiable manifolds that remain invariant under diffeomorphisms.
  • discretionary account — an account in which the stockbroker is allowed complete control over the purchase and sale of securities on the customer's behalf.
  • disk operating system — DOS.
  • displacement activity — a behavior performed out of its usual context and apparently irrelevant to the prevailing situation, as eating when an unknown individual approaches, tending to occur when appropiate behaviors, as attacking or fleeing, are in conflict or obstructed.
  • display advertisement — an advertisement designed to attract attention by using devices such as conspicuous or elegant typefaces, graphics, etc
  • distant early warning — a US radar detection system to warn of missile attack
  • downhole safety valve — A downhole safety valve is a piece of safety equipment used inside a well, which isolates wellbore pressure and fluid if something bad happens.
  • draft once reuse many — (jargon)   (DORUM) Reusing parts of a document to produce parts of an entirely new document. The term normally refers to text documents but the practise is equally common in programming.
  • dynamic data exchange — (language)   (DDE, originally Dynamic Data Linking, DDL) A Microsoft Windows 3 hotlink protocol that allows application programs to communicate using a client-server model. Whenever the server (or "publisher") modifies part of a document which is being shared via DDE, one or more clients ("subscribers") are informed and include the modification in the copy of the data on which they are working.
  • eastern daylight time — a time zone applicable to many eastern areas of the United States during the summer months, being a daylight-saving variant of Eastern Standard Time
  • educational sociology — the application of sociological principles and methods to the solution of problems in an educational system.
  • electronystagmography — A diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus. It can also be used to diagnose the cause of vertigo, dizziness or balance dysfunction by testing the vestibular system.
  • faculty board meeting — a meeting of the governing body of a faculty
  • food standards agency — the full form of FDA
  • forensic anthropology — the branch of physical anthropology in which anthropological data, criteria, and techniques are used to determine the sex, age, genetic population, or parentage of skeletal or biological materials in questions of civil or criminal law.
  • fort lesley j. mcnair — a military reservation in SW Washington, D.C., on the Potomac River, SW of the Capitol.
  • franco-belgian system — French system.
  • free-floating anxiety — chronic anxiety occurring for no identifiable cause
  • 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.
  • generic type variable — (programming)   (Also known as a "schematic type variable"). Different occurrences of a generic type variable in a type expression may be instantiated to different types. Thus, in the expression let id x = x in (id True, id 1) id's type is (for all a: a -> a). The universal quantifier "for all a:" means that a is a generic type variable. For the two uses of id, a is instantiated to Bool and Int. Compare this with let id x = x in let f g = (g True, g 1) in f id This looks similar but f has no legal Hindley-Milner type. If we say f :: (a -> b) -> (b, b) this would permit g's type to be any instance of (a -> b) rather than requiring it to be at least as general as (a -> b). Furthermore, it constrains both instances of g to have the same result type whereas they do not. The type variables a and b in the above are implicitly quantified at the top level: f :: for all a: for all b: (a -> b) -> (b, b) so instantiating them (removing the quantifiers) can only be done once, at the top level. To correctly describe the type of f requires that they be locally quantified: f :: ((for all a: a) -> (for all b: b)) -> (c, d) which means that each time g is applied, a and b may be instantiated differently. f's actual argument must have a type at least as general as ((for all a: a) -> (for all b: b)), and may not be some less general instance of this type. Type variables c and d are still implicitly quantified at the top level and, now that g's result type is a generic type variable, any types chosen for c and d are guaranteed to be instances of it. This type for f does not express the fact that b only needs to be at least as general as the types c and d. For example, if c and d were both Bool then any function of type (for all a: a -> Bool) would be a suitable argument to f but it would not match the above type for f.
  • go down the wrong way — (of food) to pass into the windpipe instead of the gullet
  • great smoky mountains — the W part of the Appalachians, in W North Carolina and E Tennessee. Highest peak: Clingman's Dome, 2024 m (6642 ft)
  • greenwich observatory — the national astronomical observatory of Great Britain, housed in a castle in E Sussex; formerly located at Greenwich.
  • hay-pauncefote treaty — an agreement (1901) between the U.S. and Great Britain giving the U.S. the sole right to build a canal across Central America connecting the Atlantic and Pacific.
  • henry steele commager — Henry Steele, 1902–98, U.S. historian, author, and teacher.
  • homogeneous catalysis — Homogeneous catalysis is catalysis in which the catalyst takes part in the reaction that it increases.
  • hyperlipoproteinaemia — the condition of having an abnormally high level of lipoproteins in the blood
  • hysterosalpingography — (medicine) X-ray examination of the uterus and oviducts following injection of a radiopaque substance.
  • immunohistochemically — By means of or in regard to immunohistochemistry.
  • in more ways than one — You say in more ways than one to indicate that what you have said is intended to have more than one meaning.
  • induced radioactivity — artificial radioactivity.
  • infant mortality rate — number of babies dying
  • infertility treatment — treatment aimed at helping a couple conceive
  • inflationary universe — a version of the big bang theory in which the universe underwent very rapid growth during the first fraction of a second before it settled down to its current rate of expansion.
  • innateness hypothesis — the theory that humans are biologically equipped with a knowledge of certain universal elements of language structure that is brought into play in the course of native-language acquisition.
  • insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
  • intellectual property — Law. property that results from original creative thought, as patents, copyright material, and trademarks.
  • intentional community — a community designed and planned around a social ideal or collective values and interests, often involving shared resources and responsibilities.
  • internal iliac artery — iliac artery (def 3).
  • interpersonal therapy — a type of psychotherapy that focuses on conflicts in one's personal relationships.
  • intersubstitutability — a person or thing acting or serving in place of another.
  • intracoastal waterway — a mostly inland water route, partly natural and partly artificial, extending 1550 miles (2500 km) along the Atlantic coast from Boston to Florida Bay (Atlantic Intracoastal Waterway) and 1116 miles (1800 km) along the Gulf coast from Carrabelle, Fla., to Brownsville, Tex. (Gulf Intracoastal Waterway) constructed to protect small craft from the hazards of the open sea.
  • isopropylideneacetone — mesityl oxide.
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