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20-letter words containing i, v, t, r, a

  • digital service unit — data service unit
  • disruptive discharge — the sudden, large increase in current through an insulating medium resulting from complete failure of the medium under electrostatic stress.
  • 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).
  • diverticular disease — any disease of the colon involving the presence of diverticula
  • documentary evidence — law: written
  • effective resistance — the resistance to an alternating current, expressed as the ratio of the power dissipated to the square of the effective current.
  • electromagnetic wave — a wave of energy propagated in an electromagnetic field
  • embryo vitrification — a method of in vitro fertilization in which the embryo is exposed to a vitreous solution and frozen before being thawed and implanted into the uterus
  • enterprise javabeans — (specification, business, programming)   (EJB) A server-side component architecture for writing reusable business logic and portable enterprise applications. EJB is the basis of Sun's Java 2 Platform, Enterprise Edition (J2EE). Enterprise JavaBean components are written entirely in Java and run on any EJB compliant server. They are operating system, platform, and middleware independent, preventing vendor lock-in. EJB servers provide system-level services (the "plumbing") such as transactions, security, threading, and persistence. The EJB architecture is inherently transactional, distributed, multi-tier, scalable, secure, and wire protocol neutral - any protocol can be used: IIOP, JRMP, HTTP, DCOM etc. EJB 1.1 requires RMI for communication with components. EJB 2.0 is expected to require support for RMI/IIOP. EJB applications can serve assorted clients: browsers, Java, ActiveX, CORBA etc. EJB can be used to wrap legacy systems. EJB 1.1 was released in December 1999. EJB 2.0 is in development. Sun claims broad industry adoption. 30 vendors are shipping server products implementing EJB. Supporting vendors include IBM, Fujitsu, Sybase, Borland, Oracle, and Symantec. An alternative is Microsoft's MTS (Microsoft Transaction Server).
  • environment variable — (programming, operating system)   A variable that is bound in the current environment. When evaluating an expression in some environment, the evaluation of a variable consists of looking up its name in the environment and substituting its value. Most programming languages have some concept of an environment but in Unix shell scripts it has a specific meaning slightly different from other contexts. In shell scripts, environment variables are one kind of shell variable. They differ from local variables and command line arguments in that they are inheritted by a child process. Examples are the PATH variable that tells the shell the file system paths to search to find command executables and the TZ variable which contains the local time zone. The variable called "SHELL" specifies the type of shell being used. These variables are used by commands or shell scripts to discover things about the environment they are operating in. Environment variables can be changed or created by the user or a program. To see a list of environment variables type "setenv" at the csh or tcsh prompt or "set" at the sh, bash, jsh or ksh prompt. In other programming languages, e.g. functional programming languages, the environment is extended with new bindings when a function's parameters are bound to its actual arguments or when new variables are declared. In a block-structured procedural language, the environment usually consists of a linked list of activation records.
  • environmental health — the issues dealt with by the Environmental Health Department of a local authority, such as prevention of the spread of communicable diseases, food safety and hygiene, control of infestation by insects or rodents, etc
  • environmental impact — the impact on the environment created by an industry, service, plan, or project
  • equivalence relation — (mathematics)   A relation R on a set including elements a, b, c, which is reflexive (a R a), symmetric (a R b => b R a) and transitive (a R b R c => a R c). An equivalence relation defines an equivalence class. See also partial equivalence relation.
  • equivalent air speed — the speed at sea level that would produce the same Pitot-static tube reading as that measured at altitude
  • every bit as good as — You say that one thing is every bit as good, interesting, or important as another to emphasize that the first thing is just as good, interesting, or important as the second.
  • five-star restaurant — a restaurant which has been given the top star-rating
  • formative assessment — ongoing assessment of a pupil's educational development within a particular subject area
  • front-end volatility — Front-end volatility is the ability of the fractions with lower boiling points, such as butane, to evaporate at normal temperatures.
  • generative phonology — a theory of phonology that uses a set of rules to derive phonetic representations from abstract underlying forms.
  • generative semantics — a theory of generative grammar holding that the deep structure of a sentence is equivalent to its semantic representation, from which the surface structure can then be derived using only one set of rules that relate underlying meaning and surface form rather than separate sets of semantic and syntactic rules.
  • give a wide berth to — to keep clear of; avoid
  • give one's right arm — to be prepared to make any sacrifice
  • give someone the air — a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere.
  • gravimetric analysis — analysis by weight.
  • gravitational radius — Schwarzschild radius.
  • great dividing range — a mountain range extending along the E coast of Australia: vast watershed region. 100 to 200 miles (160–320 km) wide.
  • great northern diver — a large northern bird, Gavia immer, with a black-and-white chequered back and a black head and neck in summer: family Gaviidae (divers)
  • 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.
  • heat of vaporization — the heat absorbed per unit mass of a given material at its boiling point that completely converts the material to a gas at the same temperature: equal to the heat of condensation.
  • in the driver's seat — If you say that someone is in the driver's seat, you mean that they are in control in a situation.
  • in-service education — training and education given to employed teachers throughout their career
  • independent variable — Mathematics. a variable in a functional relation whose value determines the value or values of other variables, as x in the relation y = 3 x 2 . Compare dependent variable (def 1).
  • information overload — an excess of incoming information, as might confront a pedestrian on a crowded city street, that forces one to be selective in the information received and retained.
  • inland revenue stamp — a certificate issued by the Inland Revenue to acknowledge payment of tax
  • intervening variable — a hypothetical variable postulated to account for the way in which a set of independent variables control a set of dependent variables
  • intravenous drug use — the injection of drugs intravenously
  • inventory adjustment — Inventory adjustments are increases or decreases made in inventory to account for theft, loss, breakages, and errors in the amount or number of items received.
  • java virtual machine — (language, architecture)   (JVM) A specification for software which interprets Java programs that have been compiled into byte-codes, and usually stored in a ".class" file. The JVM instruction set is stack-oriented, with variable instruction length. Unlike some other instruction sets, the JVM's supports object-oriented programming directly by including instructions for object method invocation (similar to subroutine call in other instruction sets). The JVM itself is written in C and so can be ported to run on most platforms. It needs thread support and I/O (for dynamic class loading). The Java byte-code is independent of the platform. There are also some hardware implementations of the JVM.
  • keratoconjunctivitis — inflammation of the cornea and conjunctiva.
  • kick over the traces — either of the two straps, ropes, or chains by which a carriage, wagon, or the like is drawn by a harnessed horse or other draft animal.
  • lacto-ovo-vegetarian — Also called lactovarian [lak-tuh-vair-ee-uh n] /ˌlæk təˈvɛər i ən/ (Show IPA), ovolactarian, ovo-lacto-vegetarian. a vegetarian whose diet includes dairy products and eggs.
  • linage advertisement — advertisements which are costed and paid for according to the number of lines in them
  • linguistic universal — language universal.
  • little kanawha river — a river in NW West Virginia, flowing N and NW to the Ohio River. 160 miles (257 km) long.
  • live and breathe sth — be passionately interested in sth
  • material equivalence — equivalence (def 4b).
  • material-equivalence — the state or fact of being equivalent; equality in value, force, significance, etc.
  • maternal deprivation — the lack of a mother in a child's life, considered a cause of psychological problems later in life
  • modify a reservation — If you modify a reservation, you change a detail of a booking because someone who has booked a room has asked you to.
  • multiplicative group — a group in which the operation of the group is multiplication.
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