24-letter words containing u, n, r, e, l
- double-crested cormorant — a North American cormorant, Phalacrocorax auritus, having tufts of black and white feathers on the sides of the head.
- ecole normale superieure — (body) (ENS) A higher education and research institution in Paris, France.
- electromagnetic spectrum — the complete range of electromagnetic radiation from the longest radio waves (wavelength 105 metres) to the shortest gamma radiation (wavelength 10–13 metre)
- electronic configuration — the arrangement of electrons in the orbitals of an atom or molecule
- equivalence partitioning — equivalence class partitioning
- evolutionary computation — Computer-based problem solving systems that use computational models of evolutionary processes as the key elements in design and implementation. A number of evolutionary computational models have been proposed, including evolutionary algorithms, genetic algorithms, the evolution strategy, evolutionary programming, and artificial life.
- evolutionary programming — (EP) A stochastic optimisation strategy originally conceived by Lawrence J. Fogel in 1960. An initially random population of individuals (trial solutions) is created. Mutations are then applied to each individual to create new individuals. Mutations vary in the severity of their effect on the behaviour of the individual. The new individuals are then compared in a "tournament" to select which should survive to form the new population. EP is similar to a genetic algorithm, but models only the behavioural linkage between parents and their offspring, rather than seeking to emulate specific genetic operators from nature such as the encoding of behaviour in a genome and recombination by genetic crossover. EP is also similar to an evolution strategy (ES) although the two approaches developed independently. In EP, selection is by comparison with a randomly chosen set of other individuals whereas ES typically uses deterministic selection in which the worst individuals are purged from the population.
- exponential distribution — a continuous single-parameter distribution used esp when making statements about the length of life of certain materials or waiting times between randomly occurring events. Its density function is p(x) = λe–λx for positive λ and nonnegative x, and it is a special case of the gamma distribution
- extremely high frequency — a radio frequency between 30 000 and 300 000 megahertz
- failure-directed testing — (programming) (Or "heuristics testing") Software testing based on the knowledge of the types of errors made in the past that are likely for the system under test.
- fcc propylene production — FCC propylene production is the production of propylene from a catalytic cracker.
- floating point underflow — underflow
- flue gas desulfurization — Flue gas desulfurization is the removal of pollutants containing sulfur from flue gas.
- fluoxetine hydrochloride — a white crystalline compound, C 17 H 18 F 3 NO⋅HCl: inhibits the uptake of serotonin and is used chiefly as an antidepressant.
- french equatorial africa — a former federation of French territories in central Africa, including Chad, Gabon, Middle Congo (now People's Republic of the Congo), and Ubangi-Shari (now Central African Republic): each became independent in 1960.
- frequent-flyer programme — a plan or system under which frequent flyers earn rewards for being regular customers
- general protection fault — General Protection Failure
- general purpose language — (GPL) An ALGOL 60 variant with user-definable types and operators.
- get hot under the collar — If someone gets hot under the collar about something, they get very annoyed, angry, or excited about it.
- graphical user interface — a software interface designed to standardize and simplify the use of computer programs, as by using a mouse to manipulate text and images on a display screen featuring icons, windows, and menus.
- greater london authority — local government body of UK capital
- gregorio lopez y fuentes — Gregorio [gre-gaw-ryaw] /grɛˈgɔ ryɔ/ (Show IPA), 1895–1966, Mexican writer.
- ground-fault interrupter — a circuit breaker that senses currents caused by ground faults and quickly shuts off power before damage can occur to generating equipment.
- guaranteed annual income — Also called guaranteed income. compensation provided by the government to any family or individual whose annual income falls below a specified level.
- gulf cooperation council — an association of Persian Gulf nations formed for the purpose of collective defense against aggression. Abbreviation: GCC.
- head and shoulders above — vastly superior to
- heart is a lonely hunter — a novel (1940) by Carson McCullers.
- immunofluorescence assay — a diagnostic blood test using the technique of immunofluorescence. Abbreviation: IFA.
- industrial correspondent — a journalist who specializes in reporting the industrial news
- instructional technology — (education) Design, development, use, management and evaluation of process and resources for learning. Instructional technology aims to promote the application of validated, practical procedures in the design and delivery of instruction. It is often defined either in terms of media and other technology used (e.g. audiovisual media and equipment and computers), or in terms of a systematic process which encompasses instructional design, development, delivery and evaluation.
- internal auditory meatus — the canal extending through the petrous portion of the temporal bone, through which the glossopharyngeal nerve, the facial nerve, and the auditory nerve and artery pass.
- internal revenue service — the division of the U.S. Department of the Treasury that collects internal revenue, including income taxes and excise taxes, and that enforces revenue laws.
- interrupt priority level — The Motorola 68000 family of processors can be at an interrupt priority level from 0 (no interrupt in progress) up to 7. While the processor is handling an interrupt at one level, it will ignore other interrupts at that level or lower.
- involuntary manslaughter — the unlawful but unintentional killing of a human being
- jam programming language — (language) (JPL) A string-based imperative language from JYACC Corporation, part of the JAM tool for developing screen (non-window) applications.
- komi autonomous republic — an autonomous republic in the NW Russian Federation in Europe. 145,221 sq. mi. (376,122 sq. km). Capital: Syktyvkar.
- lab for computer science — MIT. http://lcs.mit.edu/.
- lady washington geranium — show geranium.
- laugh in a person's face — to show open contempt or defiance towards a person
- leave no stone un turned — the hard substance, formed of mineral matter, of which rocks consist.
- legal expenses insurance — Legal expenses insurance is insurance coverage against expenses incurred when you need to seek legal advice or pay for a lawsuit.
- licensed practical nurse — a person who has graduated from an accredited school of nursing and has become licensed to provide basic nursing care under the supervision of a physician or registered nurse. Abbreviation: LPN.
- linear (induction) motor — an electric motor that produces thrust in a direct line, as distinguished from the rotary motion produced by a rotary engine, by the interaction of a moving magnetic field and the current induced by the field
- lithium aluminum hydride — a white powder, LiAlH 4 , used chiefly as a chemical reducing agent, especially in pharmaceutical and perfume manufacturing.
- long-term care insurance — Long-term care insurance is insurance for people who may require long-term health or nursing care, and pays for things such as nursing homes and adult day care.
- look over one's shoulder — If you say that someone is looking over their shoulder, you mean that they feel anxious all the time about what someone may do to them.
- lunar (excursion) module — the component of the Apollo spacecraft used to carry astronauts to the moon's surface and return them to the command and service modules in lunar orbit
- mari autonomous republic — autonomous republic in the Russian Federation in Europe. 8994 sq. mi. (23,294 sq. km). Capital: Ioshkar-Ola.
- master-slave manipulator — any of various devices, guided by the hand of the operator, for imitating the motions and tactile sensitivity of the human hand to a greater or lesser extent: used in situations in which direct handling of the objects or materials involved would be dangerous or impossible.
- mean length of utterance — the mean number of morphemes produced per sentence, used especially as a measure of child language development. Abbreviation: MLU.