20-letter words containing h, i, r, u, d, n
- a drop in the bucket — an amount very small in relation to what is needed or desired
- after-hours drinking — drinking in a pub after its legal closing time
- aluminum borohydride — a volatile liquid, Al(BH 4) 3 , that ignites spontaneously in air and reacts vigorously with water to form hydrogen, used chiefly in organic synthesis.
- antidandruff shampoo — a shampoo that prevents or treats dandruff
- antidiuretic hormone — vasopressin. Abbreviation: ADH.
- apollonius of rhodes — 3rd century bc, Greek epic poet and head of the Library of Alexandria. His principal work is the four-volume Argonautica
- appalachian dulcimer — dulcimer (def 2).
- beaverhead mountains — a mountain range on the border of E Idaho and SW Montana, in the Bitterroot Range. 10,961 feet (3343 meters).
- bring down the house — to receive enthusiastic applause from the audience
- bring the house down — to win great applause
- casing head pressure — The casing head pressure is the pressure on the casing, which is measured at the wellhead.
- chauffeur-driven car — a car driven by a chauffeur
- chief superintendent — an officer of senior rank in a British police force or other similarly organized force
- child support agency — the British government agency concerned with the welfare of children
- contradistinguishing — Present participle of contradistinguish.
- crime and punishment — a novel (1866) by Feodor Dostoevsky.
- cut the gordian knot — to find a quick, bold solution for a perplexing problem
- diamond in the rough — a diamond in its natural state
- differential housing — the casing that houses the differential of a motor vehicle
- distribution channel — trade: retailer
- epidural anaesthesia — numbing injection in the spine
- gill-over-the-ground — ground ivy.
- grand unified theory — a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT.
- happy hunting ground — the North American Indian heaven, conceived of as a paradise of hunting and feasting for warriors and hunters.
- hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
- hindu-arabic numeral — Arabic numeral.
- hit-and-run accident — a motor-vehicle accident in which the driver leaves the scene without stopping to give assistance, inform the police, etc
- holder in due course — a person who has received a negotiable instrument in good faith and without notice that it is overdue, that there is any prior claim, or that there is a defect in the title of the person who negotiated it.
- hospitality industry — the hotel and accommodation industry
- hurricane-force wind — a wind, not necessarily a hurricane, having a speed of more than 72 miles per hour (32 m/sec): the strongest of the winds.
- hydraulic fracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
- hydraulic suspension — a system of motor-vehicle suspension using hydraulic members, often with hydraulic compensation between front and rear systems (hydroelastic suspension)
- hydrodesulfurization — desulfurization by catalytic agents of the sulfur-rich hydrocarbons obtained from petroleum or the like during cracking or hydrocracking.
- intruder in the dust — a novel (1948) by William Faulkner.
- iodochlorhydroxyquin — The drug clioquinol.
- metric hundredweight — a unit of weight equivalent to 50 kilograms.
- multistep hydroplane — a motorship having a flat bottom built as a series of planes inclined forward, the ship planing on each from stem to stern as its speed increases.
- neighbourhood warden — a person employed by a local authority to patrol residential areas and deal with antisocial behaviour
- owner-occupied house — a house that is owned by the person who lives in it
- perpendicular gothic — the style of Gothic architecture in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting
- phosphorus pentoxide — a white, deliquescent, crystalline powder, P 2 O 5 , that, depending upon the amount of water it absorbs, forms orthophosphoric acid, metaphosphoric acid, or pyrophosphoric acid, produced by the burning of phosphorus in dry air: used in the preparation of phosphoric acids, as a drying and dehydrating agent, and in organic synthesis.
- prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
- proof of the pudding — the true value or quality of something, as seen when it is experienced, tried, or put to use: The proof of the pudding for a business is what customers say about it.
- public lending right — (in Britain) an act of Parliament that directs compensation to an author for the library loan of his or her book.
- quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
- roller-blind shutter — curtain shutter.
- rough-winged swallow — either of two New World swallows of the genus Stelgidopteryx, having outer primary feathers with small barblike hooks on the margins.
- schrodinger equation — the wave equation of nonrelativistic quantum mechanics. Also called Schrödinger wave equation. Compare wave equation (def 2).
- shoulder-length hair — hair that reaches a person's shoulders
- south orkney islands — an uninhabited group of islands in the S Atlantic, southeast of Cape Horn: formerly a dependency of the Falkland Islands; part of the British Antarctic Territory since 1962 (claims are suspended under the Antarctic Treaty). Area: 621 sq km (240 sq miles)
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