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23-letter words containing a, c, e, h

  • heaviside unit function — the function that is zero for any number less than zero and that is 1 for any number greater than or equal to zero.
  • heterogeneous catalysis — Heterogeneous catalysis is catalysis in which the catalyst does not take part in the reaction that it increases.
  • hexagonal cross-section — If a kelly has a hexagonal cross-section, it has a surface area with six equal sides, when looked at as if has been sliced through.
  • hierarchical navigation — (web)   On a web page, any type of menu whose hierarchical structure matches that of the site to which the page belongs. A hierarchical navigation menu allows the user to jump ("navigate") directly to a section of the site several levels below the top. The menu may present only a fixed number of levels rather than the whole structure.
  • hire purchase agreement — an agreement between a seller and a buyer for the buyer to purchase something on hire purchase
  • hollerithabetical order — (algorithm)   Sorted into the order a standard Hollerith card sorting machine produces, with special characters interleaved within the alphabet.
  • hook-and-ladder company — a company of firefighters equipped with a hook-and-ladder truck.
  • human leukocyte antigen — HLA.
  • human rights campaigner — a person who campaigns for human rights
  • hunchback of notre dame — French Notre Dame de Paris. a novel (1831) by Victor Hugo.
  • hypergeometric equation — a differential equation of the form, (x 2 − x) d 2 y / d 2 x + [(a+b +1) x−c ] dy/dx + abx =0, where a, b, and c are arbitrary constants.
  • hypothetical imperative — (esp in the moral philosophy of Kant) any conditional rule of action, concerned with means and ends rather than with duty for its own sake
  • icosidodecadodecahedron — A polyhedron having 44 faces, 60 vertices, 120 edges, 12 self intersected faces and 12 nonconvex faces.
  • in sack cloth and ashes — sacking.
  • interchange file format — (file format)   (IFF, full name "EA IFF 1985") A generic file format published by Electronic Arts as an open standard. IFF is chunk-based and hierarchical so files can include other files. It is easily extensible and an all round Good Idea. An IFF file starts with one of the following "group IDs": 'FORM', 'LIST' or 'CAT '. This is followed by an unsigned 32-bit number of bytes in the remainder of the file. Then comes an ID that indicates which type of IFF file this is. The main image type is ILBM, audio is either AIFF or 8SVX, animations are ANIM etc. An IFF file will probably have a filename extension related to this file type stored in the file. The rest of the file is divided into chunks each of which also has a four-byte header and byte count.
  • intermediate technology — technology which combines sophisticated ideas with cheap and readily available materials, esp for use in developing countries
  • irish christian brother — Brother of the Christian Schools (def 2).
  • kick against the pricks — to hurt oneself by struggling against something in vain
  • kinetic theory of gases — a theory that the particles in a gas move freely and rapidly along straight lines but often collide, resulting in variations in their velocity and direction. Pressure is interpreted as arising from the impacts of these particles with the walls of a container.
  • knock into a cocked hat — a man's hat, worn especially in the 18th century, having a wide, stiff brim turned up on two or three sides toward a peaked crown. Compare bicorne, tricorn (def 2).
  • lady chatterley's lover — a novel (1928) by D. H. Lawrence.
  • largemouth (black) bass — a black bass (Micropterus salmoides) found in warm, sluggish waters
  • laughlin air force base — U.S. Air Force installation in SW Texas, SE of Del Rio.
  • lesser peach tree borer — the larva of a clearwing moth, Synanthedon pictipes, distributed throughout the eastern U.S. and Canada but most prevalent in the South, that burrows into the injured trunks and branches of stone fruit trees.
  • light and shade surface — (in architectural shades and shadows) a surface in a plane tangent to the parallel rays from the theoretical light source, treated as a shade surface.
  • like a headless chicken — disorganized and uncontrolled
  • like anything/crazy/mad — You can use the expressions like anything, like crazy, or like mad to emphasize that someone is doing something or something is happening in a very energetic or noticeable way.
  • lymphoblastic leukaemia — a severe blood disorder in which abnormal leukocytes are identified as immature forms of lymphocytes
  • made out of whole cloth — completely fictitious or false; made up
  • magnetic field strength — that part of the magnetic induction that is determined at any point in space by the current density and displacement current at that point independently of the magnetic or other physical properties of the surrounding medium. Symbol: H.
  • magneto-encephalography — a record of the magnetic field of the brain. Abbreviation: MEG.
  • magnetohydrodynamically — In a magnetohydrodynamic way.
  • magnetomechanical ratio — the ratio of the angular momentum of a rotating charged particle to its magnetic moment; the reciprocal of the gyromagnetic ratio.
  • make allowances for sth — If you make allowances for something, you take it into account in your decisions, plans, or actions.
  • micropachycephalosaurus — A very small pachycephalosaurid, ornithischian dinosaur of the genus Micropachycephalosaurus.
  • murder in the cathedral — a verse drama (1935) by T. S. Eliot.
  • national health service — In Britain, the National Health Service is the state system for providing medical care. It is paid for by taxes.
  • neutrosophic statistics — (statistics)   Analysis of events described by neutrosophic probability.
  • new york stock exchange — the largest stock exchange in the U.S., located in New York City. Abbreviation: NYSE, N.Y.S.E.
  • nigger of the narcissus — a novel (1897) by Joseph Conrad.
  • north east lincolnshire — a unitary authority in E England, in Lincolnshire: formerly (1974–96) part of the county of Humberside. Pop: 157 400 (2003 est). Area: 192 sq km (74 sq miles)
  • north ossetian republic — a constituent republic of S Russia, on the N slopes of the central Caucasus Mountains. Capital: Vladikavkaz. Pop: 709 900 (2002). Area: about 8000 sq km (3088 sq miles)
  • not a hair out of place — If you say that someone has not a hair out of place, you are emphasizing that they are extremely smart and neatly dressed.
  • object relations theory — a form of psychoanalytic theory postulating that people relate to others in order to develop themselves
  • off the back of a lorry — If someone says that something has fallen off the back of a lorry, or that they got something off the back of a lorry, they mean that they bought something that they knew was stolen.
  • orthodox eastern church — Eastern Orthodox Church
  • orthographic projection — a two-dimensional graphic representation of an object in which the projecting lines are at right angles to the plane of the projection. Also called orthogonal projection. Compare isometric (def 5).
  • orthostatic hypotension — Medicine/Medical. a fall in blood pressure associated with an upright position, usually occurring as a result of standing still for a long time or rising from a prolonged stay in bed and often causing faintness, dizziness, and vision disturbances.
  • over-the-counter market — a security market that deals in securities that are not listed or quoted on a stock exchange
  • overnight accommodation — accommodation provided by an establishment (such as a hotel) where guests can sleep or spend the night
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