15-letter words containing r, h, o, d, u
- growth industry — an industry that is experiencing rapid growth
- guard of honour — A guard of honour is an official parade of troops, usually to celebrate or honour a special occasion, such as the visit of a head of state.
- half-round file — a file having a semicircular cross-section
- half-understood — partially understood
- hard-luck story — a story of misfortune designed to elicit sympathy
- hare and hounds — an outdoor game in which certain players, the hares, start off in advance on a long run, scattering small pieces of paper, called the scent, with the other players, the hounds, following the trail so marked in an effort to catch the hares before they reach a designated point.
- hausdorff space — a topological space in which each pair of points can be separated by two disjoint open sets containing the points.
- haute-normandie — a region of NW France, on the English Channel: generally fertile and flat
- hazardous waste — any industrial by-product, especially from the manufacture of chemicals, that is destructive to the environment or dangerous to the health of people or animals: Hazardous wastes often contaminate ground water.
- hedge your bets — play it safe, lessen a risk
- heterodactylous — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- holding furnace — a small furnace for holding molten metal produced in a larger melting furnace at a desired temperature for casting.
- horned cucumber — a tropical African plant, Cucumis metuliferus, having fruit with spiky, orange skin and jellylike pulp that tastes like cucumbers.
- horse latitudes — the latitudes near 30°N or 30°S at sea, characterized by baffling winds, calms, and high barometric pressure
- horse-and-buggy — of or relating to the last few generations preceding the invention of the automobile: vivid recollections of horse-and-buggy days.
- hughes syndrome — a condition of the autoimmune system caused by antibodies reacting against phospholipids, leading to thrombosis
- hundred flowers — the 1957 political campaign in the People's Republic of China to encourage greater freedom of intellectual expression, initiated by Mao Zedong under the slogan “Let a hundred flowers bloom, let a hundred schools of thought contend.”.
- hunting leopard — the cheetah.
- huntingdonshire — a former county in E England, now part of Cambridgeshire.
- hurdle champion — a hurdler who has defeated all others in a competition
- hyaluronic acid — a mucopolysaccharide serving as a viscous medium in the tissues of the body and as a lubricant in joints.
- hybrid computer — a computer system containing both analog and digital hardware.
- hydraulic motor — a motor that converts the kinetic or potential energy of a fluid into mechanical energy.
- hydrofracturing — 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.
- hydrometallurgy — the technique or process of extracting metals at ordinary temperatures by leaching ore with liquid solvents.
- hydrosulphurous — relating to or derived from hydrosulphurous acid
- hydroxonium ion — a positive ion, H3O+, formed by the attachment of a proton to a water molecule: occurs in solutions of acids and behaves like a hydrogen ion
- hydroxybutyrate — (chemistry) any salt or ester of hydroxybutyric acid, but especially of gamma-hydroxybutyric acid.
- hydroxycoumarin — (organic compound) Any of several isomeric hydroxy derivatives of coumarin, some of which are the basis of pharmaceuticals.
- hyperfastidious — extremely or excessively fastidious
- hyperproduction — an increased or excessive production or output
- ichthyodorulite — a spiny plate located on the tail and back of some fish or similar vertebrates
- in honour bound — under a moral obligation
- in the doldrums — miserable, depressed
- into the ground — beyond what is requisite or can be endured; to exhaustion
- irish wolfhound — one of an Irish breed of large, tall dogs having a rough, wiry coat ranging in color from white to brindle to black.
- joseph jacquard — Joseph Marie [zhoh-zef ma-ree] /ʒoʊˈzɛf ma ri/ (Show IPA), 1752–1834, French inventor.
- judeo-christian — of or relating to the religious writings, beliefs, values, or traditions held in common by Judaism and Christianity.
- leukodystrophic — Of or pertaining to leukodystrophy.
- make the rounds — having a flat, circular surface, as a disk.
- meadow mushroom — any of various fleshy fungi including the toadstools, puffballs, coral fungi, morels, etc.
- ocean greyhound — a fast ship, esp a liner
- odontorhynchous — (of birds) having toothlike ridges inside the beak
- ortho-toluidine — Chemistry. a light-yellow, very slightly water-soluble liquid, C 7 H 9 N, the ortho isomer of toluidine: used in the manufacture of dyes, saccharin, and other organic compounds, and in textile printing processes.
- orthodox church — the Christian church comprising the local and national Eastern churches that are in communion with the ecumenical patriarch of Constantinople; Byzantine Church.
- outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
- photoproduction — the light-induced production of a species of molecule such as a radical or ion
- protonephridium — a tubular, excretory structure in certain invertebrates, as flatworms, rotifers, and some larvae, usually ending internally in flame cells and having an external pore
- pseudepigraphon — any book of the Pseudepigrapha
- pseudoarthrosis — a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united