17-letter words containing o, r, a, i, u
- absolute majority — If a political party wins an absolute majority, they obtain more seats or votes than the total number of seats or votes gained by their opponents in an election.
- absorption nebula — a cloud of interstellar gas and dust that absorbs and thus obscures the light from stars behind it, appearing as a dark patch in front of a bright nebula or in an otherwise bright area of sky.
- academie goncourt — Edmond Louis Antoine Huot de [ed-mawn lwee ahn-twan y-oh duh] /ɛdˈmɔ̃ lwi ɑ̃ˈtwan üˈoʊ də/ (Show IPA), 1822–96, and his brother Jules Alfred Huot de [zhyl al-fred] /ʒyl alˈfrɛd/ (Show IPA) 1830–70, French art critics, novelists, and historians: collaborators until the death of Jules.
- accounting period — a period of time for which accounts are drawn up
- achromatic colour — colour, such as white, black, and grey, that is devoid of hue
- acidity regulator — a substance, such as citric acid, added to food to change or maintain its pH value
- acoustoelectronic — denoting a device in which electronic signals are converted into acoustic waves, esp in delay lines, etc
- acromioclavicular — (anatomy) Pertaining to both the acromion and the clavicle.
- act of uniformity — any of the three statutes (1549, 1559, 1662) regulating public worship services in the Anglican Church, especially the act of 1662 requiring the use of the Book of Common Prayer.
- active vocabulary — the total number of words a person uses in his own speech and writing
- acupressure point — any of the specific points on the body where pressure is applied in acupressure
- adjective pronoun — a pronoun used as an adjective, as his in His dinner is ready.
- adventure holiday — a holiday that involves some physically challenging activity such as canoeing, rock climbing, etc
- adventure tourism — tourism involving activities that are physically challenging
- affaire d'honneur — a duel
- agricultural show — a display of agricultural equipment and livestock, often including competitions, entertainment, and a trade fair
- alternating group — the subgroup consisting of all even permutations, of the group of all permutations of a finite set.
- aluminum chloride — a yellow-white, crystalline, water-soluble solid that in its white hydrated form, AlCl 3 ⋅6H 2 O, is used chiefly as a wood preservative and in its yellow-white anhydrous form, AlCl 3 , chiefly as a catalyst.
- american foxhound — one of an American breed of medium-sized dogs having a smooth, glossy coat usually black, tan, and white in color, a square-cut muzzle, hanging ears, and a moderately high-set tail, used for hunting both in packs or individually, tailing the game by scent.
- ammonium chloride — a white soluble crystalline solid used chiefly as an electrolyte in dry batteries and as a mordant and soldering flux. Formula: NH4Cl
- ammonium stearate — a tan, waxlike, water-insoluble solid, C 18 H 39 NO 2 , used chiefly in the manufacture of cosmetics.
- angostura bitters — a bitter aromatic tonic made from gentian and various spices and vegetable colourings, used as a flavouring in alcoholic drinks
- anthraquinone dye — any of the class of dyes derived from anthraquinone, used for dyeing textiles, especially cotton, rayon, and silk.
- antiauthoritarian — Opposed to authority.
- antirevolutionary — opposed to revolution, esp opposed to a particular revolution and the people who are carrying it out
- antivirus program — antivirus software
- aperture priority — an automatic exposure system in which the photographer selects the aperture and the camera then automatically sets the correct shutter speed
- aperture-priority — of or relating to a semiautomatic exposure system in which the photographer presets the aperture and the camera selects the shutter speed.
- appointed actuary — An appointed actuary is an actuary appointed by a life insurance company, whose main role is to carry out a regular valuation of the reserves held to pay future policy benefits.
- aristolochiaceous — belonging to the Aristolochiaceae, the birthwort family of plants.
- armature reaction — a change in the magnetic field of a dynamo caused by the magnetic field induced by the current flowing through the armature.
- aromatic compound — an organic compound that contains one or more benzene or equivalent heterocyclic rings: many such compounds have an agreeable odor.
- articulated joint — Anatomy. a flexible joint.
- articulated lorry — a lorry made in two separate sections, a tractor and a trailer, connected by a pivoted bar
- articulatory loop — a short-term memory system that enables a person to remember short strings of words by rehearsing them repeatedly in his head
- astronomical unit — a unit of distance used in astronomy equal to the mean distance between the earth and the sun. 1 astronomical unit is equivalent to 1.495 × 1011 metres or about 9.3 × 107 miles
- audio description — a facility provided for visually impaired people in which a film, television programme, or play is described through audio technology
- aurea mediocritas — the golden mean.
- australian ballot — an official ballot listing candidates for election to public office and issues, levies, etc., distributed inside the polling place to be marked by the voter in secret: it originated in Australia and is widely used in the U.S.
- australopithecine — any of various extinct apelike primates of the genus Australopithecus and related genera, remains of which have been discovered in southern and E Africa. Some species are estimated to be over 4.5 million years old
- authoritativeness — having due authority; having the sanction or weight of authority: an authoritative opinion.
- authority control — the establishment and maintainance of consistent forms of terms, as of names, subjects, and titles, to be used as headings in bibliographic records.
- autocorrelational — Of or pertaining to autocorrelation.
- automatic writing — writing performed without apparent intent or conscious control, especially to achieve spontaneity or uncensored expression.
- auxiliary storage — secondary storage.
- aviation industry — a collective term for the companies involved in air transport
- avoirdupois pound — a pound weighing 16 ounces
- barrow-in-furness — an industrial town in NW England, in S Cumbria. Pop: 47 194 (2001)
- behaviour therapy — any of various means of treating psychological disorders, such as desensitization, aversion therapy, and instrumental conditioning, that depend on the patient systematically learning new modes of behaviour
- bighorn mountains — range of the Rocky Mountains in N Wyo. and S Mont.: highest peak, 13,165 ft (4,013 m)
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