19-letter words containing o, u, n
- genetic counselling — the provision of advice for couples with a history of inherited disorders who wish to have children, including the likelihood of having affected children and the course and management of the disorder, etc
- geneva nomenclature — an internationally accepted system for naming organic carbon compounds.
- geomagnetic equator — an imaginary line on the earth's surface, the plane of which passes through the center and is midway between the geomagnetic poles.
- get one's dander up — to become or to cause someone to become annoyed or angry
- glorious revolution — the events of 1688–89 in England that resulted in the ousting of James II and the establishment of William III and Mary II as joint monarchs
- go (on a) walkabout — If a king, queen, or other important person goes walkabout or goes on a walkabout, he or she walks through crowds in a public place in order to meet people in an informal way.
- go down the tube(s) — If a business, economy, or institution goes down the tubes or goes down the tube, it fails or collapses completely.
- go into liquidation — to close one's business by collecting assets and settling all debts
- go jump in the lake — a body of fresh or salt water of considerable size, surrounded by land.
- go out of one's way — manner, mode, or fashion: a new way of looking at a matter; to reply in a polite way.
- go round in circles — to engage in energetic but fruitless activity
- go to rack and ruin — If you say that a place is going to rack and ruin, you are emphasizing that it is slowly becoming less attractive or less pleasant because no-one is bothering to look after it.
- go under the hammer — to be offered for sale by an auctioneer
- goa, daman, and diu — an administrative territory of India, in the W part: formerly Portuguese India; annexed by India 1961. 1426 sq. mi. (3693 sq. km). Capital: Panjim.
- godfrey of bouillon — (Duke of Lower Lorraine) 1060?–1100, French leader of the First Crusade 1096–99.
- goes without saying — If something goes without saying, it is obvious.
- goldbach conjecture — an unproved theorem that every even integer greater than 2 can be written as the sum of two prime numbers.
- grand duke nicholas — of Cusa [kyoo-zuh] /ˈkyu zə/ (Show IPA), 1401–1464, German cardinal, mathematician, and philosopher. German Nikolaus von Cusa.
- granuloma inguinale — a venereal disease marked by deep ulceration of the skin of the groin and external genitals, caused by the bacterium Calymmatobacterium granulomatis.
- gratuitous contract — a contract for the benefit of only one of the parties, the other party receiving nothing as consideration.
- green mountain boys — the members of the armed bands of Vermont organized in 1770 to oppose New York's territorial claims. Under Ethan Allen they won fame in the War of American Independence
- greenhouse whitefly — See under whitefly.
- grievance procedure — the established series of steps to be taken in dealing with a grievance raised with an employer by an employee
- ground-plane aerial — a quarter-wave vertical dipole aerial in which the electrical image forming the other quarter-wave section is formed by reflection in a system of radially disposed metal rods or in a conductive sheet
- gulf of carpentaria — a shallow inlet of the Arafura Sea, in N Australia between Arnhem Land and Cape York Peninsula
- gulf of tehuantepec — an inlet of the Pacific on the south coast of the Isthmus of Tehuantepec in S Mexico
- handlebar moustache — a man's moustache having long, curved ends that resemble the handlebars of a bicycle.
- hate someone's guts — to hate someone intensely
- haute vulgarisation — vulgarization, or popularization, on a higher level, esp. as done by academics, scholars, etc.
- have one's blood up — to be or cause to be angry or inflamed
- heart in your mouth — If your heart is in your mouth, you feel very excited, worried, or frightened.
- heat of sublimation — the heat absorbed by one gram or unit mass of a substance in the process of changing, at a constant temperature and pressure, from a solid to a gaseous state. Compare sublime (def 10).
- henry david thoreau — Henry David, 1817–62, U.S. naturalist and author.
- hermitian conjugate — adjoint (def 2).
- hexafluoroplatinate — (chemistry) The univalent anion PtF6- prepared by reacting platinum hexafluoride with certain metals or other elements.
- hold up one's hands — to confess a mistake or misdeed
- homme moyen sensuel — an average man, with average tastes and appetites
- hop, skip, and jump — a short distance
- hop, step, and jump — triple jump.
- hound's-tooth check — a pattern of broken or jagged checks, used on a variety of fabrics.
- house of correction — a place for the confinement and reform of persons convicted of minor offenses and not regarded as confirmed criminals.
- house of councilors — the upper house of the Japanese diet.
- household insurance — an arrangement in which you pay money to a company, and they pay money to you if your household goods are stolen or damaged
- housing association — A housing association is an organization which owns houses and helps its members to rent or buy them more cheaply than on the open market.
- housing development — a group of houses or apartments, usually of the same size and design, often erected on a tract of land by one builder and controlled by one management.
- hudson river school — a group of American painters of the mid-19th century whose works are characterized by a highly romantic treatment of landscape, especially along the Hudson River.
- human rights record — the facts that are known about the tendency of a country, regime, etc, to observe and protect human rights
- humanist technology — (philosophy) Technology centered around the interests, needs, and well-being of humans.
- huntington's chorea — a hereditary disease of the central nervous system characterized by brain deterioration and loss of control over voluntary movements, the symptoms usually appearing in the fourth decade of life.
- hydropneumatization — utilization of air pressure in the housing of a water turbine to keep the level of water that has been used from rising to interfere with the rotor blades.