21-letter words containing h, u, r, l
- a lump in your throat — If you say that you have a lump in your throat, you mean that you have a tight feeling in your throat because of a strong emotion such as sorrow or gratitude.
- a rap on the knuckles — If someone in authority gives you a rap on the knuckles, they criticize you or blame you for doing something they think is wrong.
- alpha centauri system — a star system comprising the binary star Alpha Centauri A and B and Proxima Centauri (also called Alpha Centauri C), which is 0.1 light years closer to the sun. Visual magnitude: 0.01 (A), 1.33 (B); spectral type: G2V (A); distance from earth: 4.3 light years
- alpha piscis austrini — Fomalhaut
- annual change traffic — (software) (ACT) The fraction of the software product's source code which changes during a year, either through addition or modification. The ACT can be used to determine the product size in order to estimate software maintenance effort.
- architecture parlante — the architecture of buildings that, in their plans or elevations, create an image that suggests their functions.
- arithmetic logic unit — the part of a central processing unit that performs arithmetic and logical operations
- arithmetic/logic unit — ALU.
- as dull as ditchwater — extremely uninspiring
- behavioural contagion — the spread of a particular type of behaviour, such as crying, through a crowd or group of people
- benzalkonium chloride — a white or yellowish-white, water-soluble mixture of ammonium chloride derivatives having the structure C 8 H 10 NRCl, where R is a mixture of radicals ranging from C 8 H 17 – to C 18 H 37 –, that occurs as an amorphous powder or in gelatinous lumps: used chiefly as an antiseptic and a disinfectant.
- benzethonium chloride — a colorless, water-soluble, crystalline solid, ammonium chloride derivative, (C 27 H 42 O 2 N)Cl⋅H 2 O, used chiefly as an antiseptic.
- bibliographic utility — an organization that maintains computerized bibliographic records and offers to its members or customers various products and services related to these records.
- bichloride of mercury — mercuric chloride
- blackburn with darwen — a unitary authority in NW England, in Lancashire. Pop: 139 800 (2003 est). Area: 137 sq km (53 sq miles)
- bluethroat pikeblenny — See under pikeblenny.
- bottlebrush moustache — a short, bristly moustache
- break the fourth wall — (esp of a character in a television programme, film, or play) to refer to, acknowledge, or address the audience, usually for comedic effect or as an avante-garde technique
- breakthrough bleeding — bleeding from the uterus that occurs between menstrual periods
- british sign language — the main sign language used by deaf people in the United Kingdom
- burn the midnight oil — to work or study late into the night
- charge-coupled device — an electronic device, used in imaging and signal processing, in which information is represented as packets of electric charge that are stored in an array of tiny closely spaced capacitors and can be moved from one capacitor to another in a controlled way
- charles edward stuart — a member of the royal family that ruled in Scotland from 1371 to 1714 and in England from 1603 to 1714.
- chequebook journalism — Chequebook journalism is the practice of paying people large sums of money for information about crimes or famous people in order to get material for newspaper articles.
- clerk to the justices — (in England) a legally qualified person who sits in court with lay justices to advise them on points of law
- column chromatography — the separation of mixtures into their constituents by preferential adsorption by a solid, as a column of silica (column chromatography) or a strip of filter paper (paper chromatography) or by a gel.
- comfortably-furnished — containing comfortable furniture
- completing the square — a method, usually of solving quadratic equations, by which a quadratic expression, as x 2 − 4 x + 3, is written as the sum or difference of a perfect square and a constant, x 2 − 4 x + 4 + 3 − 4 = (x − 2) 2 − 1, by addition and subtraction of appropriate constant terms.
- congregational church — any evangelical Protestant Christian Church that is governed according to the principles of Congregationalism. In 1972 the majority of churches in the Congregational Church in England and Wales voted to become part of the United Reformed Church
- crude oil dehydration — Crude oil dehydration is the removal of water or water vapor from crude oil, by separating the oil from the water, often in a rotating centrifuge.
- cultural anthropology — the branch of anthropology dealing with cultural as opposed to biological and racial features
- dataflow architecture — a means of arranging computer data processing in which operations are governed by the data present and the processing it requires rather than by a prewritten program that awaits data to be processed
- desire under the elms — a play (1924) by Eugene O'Neill.
- disruptive technology — A disruptive technology is a new technology, such as computers and the Internet, which has a rapid and major effect on technologies that existed before.
- double spanish burton — a tackle having one standing block and two running blocks, giving a mechanical advantage of five, neglecting friction.
- eiffel source checker — A compiler front-end for Eiffel 3 by Olaf Langmack <[email protected]> and Burghardt Groeber. It was generated automatically with the Karlsruhe toolbox for compiler construction according to the most recent public language definition. The parser derives an easy-to-use abstract syntax tree, supports elementary error recovery and provides a precise source code indication of errors. It performs a strict syntax check and analyses 4000 lines of source code per second on a Sun SPARC workstation.
- electronic publishing — Electronic publishing is the publishing of documents in a form that can be read on a computer, for example as a CD-ROM.
- enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
- equiangular hyperbola — a hyperbola with transverse and conjugate axes equal to each other.
- fluorophosphoric acid — any of three acids containing fluorine and phosphorus, HPF 6 , HPO 2 F 2 , or H 2 PO 3 F.
- full faith and credit — the obligation under Article IV of the U.S. Constitution for each state to recognize the public acts, records, and judicial proceedings of every other state.
- fuming sulphuric acid — a mixture of pyrosulphuric acid, H2S2O7, and other condensed acids, made by dissolving sulphur trioxide in concentrated sulphuric acid
- goldbach's conjecture — the conjecture that every even number greater than two is the sum of two prime numbers
- gram-molecular weight — gram molecule. Abbreviation: GMW.
- 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.
- hindu-arabic numerals — Arabic numeral.
- historic places trust — (in New Zealand) the statutory body concerned with the conservation of historic buildings, esp with ancient Māori sites
- horizontal tabulation — (character) (tab, Control-I, HT, ASCII 9) A character which when displayed or printed causes the following character to be placed at the next "tabstop" - the column whose number is a multiple of the current tab width. Commonly (especially in Unix(?)) the tab width is eight, so, counting from the left margin (column zero), the tab stops are at columns 8, 16, 24, up to the width of the screen or page. A tab width of four or two is often preferred when indenting program source code to conserve indentation. Represented as "\t" in C, Unix, and derivatives.
- human papilloma virus — a species of virus that causes genital warts. Abbreviation: HPV.
- hydraulic accumulator — an apparatus in which gas, usually air, is used as a cushion or shock absorber in a hydraulic system.
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