18-letter words containing r, e, g, i, o, n
- according to hoyle — according to the rules and regulations; in the prescribed, fair, or correct way
- accretionary wedge — a body of deformed sediments, wedge-shaped in two dimensions or prism-shaped in three dimensions, that has been scraped off the surface of the oceanic lithosphere as it moves downwards beneath a continent or island arc. The sediments are added to the continental edge
- age discrimination — discrimination against older people, especially by employers
- agri-environmental — of or relating to the impact of agricultural practices on the environment
- agro-industrialize — to industrialize the agriculture of: to agro-industrialize a developing nation.
- algebraic equation — an equation in the form of a polynomial having a finite number of terms and equated to zero, as 2 x 3 + 4 x 2 − x + 7 = 0.
- algebraic function — any function which can be constructed in a finite number of steps from the elementary operations and the inverses of any function already constructed
- algebraic notation — the standard method of denoting the squares on the chessboard, by allotting a letter, a, b, c, up to h, to each of the files running up the board from White's side, starting from the left, and a number to each of the ranks across the board, starting with White's first rank
- an overgrown child — an adult whose behaviour is characteristic of a child
- analogue recording — a sound recording process in which an audio input is converted into an analogous electrical waveform
- angular dispersion — a measure of the angular separation of light rays of different wavelength or color traversing a prism or diffraction grating, equal to the rate of change of the angle of deviation with respect to the change in wavelength.
- antiferromagnetism — the phenomenon exhibited by substances that resemble paramagnetic substances in the value of their relative permeability but that behave like ferromagnetic substances when their temperature is varied
- antisegregationist — opposed to the segregation of different races in any human activity
- aristotelian logic — the logical theories of Aristotle as developed in the Middle Ages, concerned mainly with syllogistic reasoning: traditional as opposed to modern or symbolic logic
- assignment problem — (mathematics, algorithm) (Or "linear assignment") Any problem involving minimising the sum of C(a, b) over a set P of pairs (a, b) where a is an element of some set A and b is an element of set B, and C is some function, under constraints such as "each element of A must appear exactly once in P" or similarly for B, or both. For example, the a's could be workers and the b's projects. The problem is "linear" because the "cost function" C() depends only on the particular pairing (a, b) and is independent of all other pairings.
- assortative mating — the reproductive pairing of individuals that have more traits in common than would likely be the case if mating were random (contrasted with disassortative mating).
- at your fingertips — If you say that something is at your fingertips, you approve of the fact that you can reach it easily or that it is easily available to you.
- atmospheric engine — an early form of single-acting engine in which the power stroke is provided by atmospheric pressure acting upon a piston in an exhausted cylinder.
- attention-grabbing — An attention-grabbing remark or activity is one that is intended to make people notice it.
- audio conferencing — the practice of conducting meetings by the use of audio telecommunications
- autogenic training — a technique for reducing stress through mental exercises to produce physical relaxation
- background reading — reading of related works in order to get contextual information on a topic that you are intending to study or write about
- bargaining counter — A bargaining counter is the same as a bargaining chip.
- be getting nowhere — If you say that you are getting nowhere, or getting nowhere fast, or that something is getting you nowhere, you mean that you are not achieving anything or having any success.
- bedlington terrier — a lithe, graceful breed of terrier having a long tapering head with no stop and a thick fleecy coat
- beggar-my-neighbor — beggar-your-neighbor.
- biological parents — the biological mother and father of a child
- blissful ignorance — unawareness or inexperience of something unpleasant
- bosnia-herzegovina — a country in SE Europe; a constituent republic of Yugoslavia until 1991; in a state of civil war (1992–95); Serbian and Croatian forces were also involved: mostly barren and mountainous, with forests in the east. Languages: Bosnian, Croatian, and Serbian (formerly all regarded together as Serbo-Croat). Religion: Muslim, Serbian Orthodox, and Roman Catholic. Currency: marka (pegged to the euro). Capital: Sarajevo. Pop: 3 875 723 (2013 est). Area: 51 129 sq km (19 737 sq miles)
- boulogne-sur-seine — an industrial suburb of SW Paris. Pop: 106 367 (1999)
- brightness control — a control that enables the brightness of the image on a television screen, computer monitor, etc to be adjusted
- bring someone luck — If you say that something brings bad luck or brings someone good luck, you believe that it has an influence on whether good or bad things happen to them.
- bring to its knees — If a country or organization is brought to its knees, it is almost completely destroyed by someone or something.
- broadcasting house — any of a number of buildings in the UK from which the BBC broadcasts or has broadcast
- burn one's bridges — If you burn your bridges, you do something which forces you to continue with a particular course of action, and makes it impossible for you to return to an earlier situation or relationship.
- burn one's fingers — to suffer from having meddled or been rash
- cabernet sauvignon — a black grape originally grown in the Bordeaux area of France, and now throughout the wine-producing world
- cabinet government — parliamentary government.
- carboxyhaemoglobin — haemoglobin coordinated with carbon monoxide, formed as a result of carbon monoxide poisoning. As carbon monoxide is bound in preference to oxygen, tissues are deprived of oxygen
- catalogue raisonne — a descriptive catalogue, esp one covering works of art in an exhibition or collection
- cationic detergent — a type of detergent in which the active part of the molecule is a positive ion (cation). Cationic detergents are usually quaternary ammonium salts and often also have bactericidal properties
- cauliflower fungus — a large edible white to yellowish cauliflowerlike mushroom, Sparassis radicata, widely distributed in North America.
- ceiling decoration — a plaster moulding for the centre of a ceiling; other decoration, such as coving
- character encoding — (character) (Or "character encoding scheme") A mapping between binary data values and character code positions (or "code points"). Early systems stored characters in a variety of ways, e.g. four six-bit characters in a 24-bit word, but around 1960, eight-bit bytes started to become the most common data storage layout, with each character stored in one byte, typically in the ASCII character set. In the case of ASCII, the character encoding is an identity mapping: code position 65 maps to the byte value 65. This is possible because ASCII uses only code positions representable as single bytes, i.e., values between 0 and 255. (US-ASCII only uses values 0 to 127, in fact.) From the late 1990s, there was increased use of larger character sets such as Unicode and many CJK coded character sets. These can represent characters from many languages and more symbols.
- charge conjugation — the mathematical operation of replacing every elementary particle by its antiparticle. Symbol: C.
- chinese gooseberry — kiwi (sense 2)
- cigar-store indian — a wooden statue of an American Indian, traditionally displayed at the entrance of cigar stores.
- clobbering machine — pressure to conform with accepted standards
- collection charges — the charges levied to cover expenses for the collection of debt
- collision coverage — Collision coverage is insurance cover for vehicle accidents.
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