12-letter words containing u, n, r, o, d
- grand coulee — a dry canyon in central Washington: cut by the Columbia River in the glacial period. 52 miles (84 km) long; over 400 feet (120 meters) deep.
- grand rounds — a formal hospital meeting at which physicians discuss interesting medical cases.
- ground alert — the state of waiting for orders in or near combat airplanes ready to take to the air at once.
- ground cable — a heavy chain for securing permanent floating moorings, as a number of mooring buoys.
- ground cedar — a ground pine, Lycopodium complanatum.
- ground cloth — groundsheet.
- ground color — Also called ground coat. a primary coat of paint; priming; base coat.
- ground cover — the herbaceous plants and low shrubs in a forest, considered as a whole.
- ground fault — the momentary, usually accidental, grounding of a conducting wire.
- ground floor — the floor of a building at or nearest to ground level.
- ground force — a military force that operates on the ground
- ground frost — the condition resulting from a temperature reading of 0°C or below on a thermometer in contact with a grass surface
- ground glass — Optics. glass that has had its polished surface removed by fine grinding and that is used to diffuse light.
- ground level — ground state.
- ground plane — (in perspective drawing) the theoretical horizontal plane receding from the picture plane to the horizon, beginning at the level of the base line.
- ground plate — Electricity. a metal plate for making a ground connection to the earth.
- ground robin — towhee.
- ground rules — Usually, ground rules. basic or governing principles of conduct in any situation or field of endeavor: the ground rules of press conferences.
- ground shark — any of various requiem sharks, especially of the genus Carcharhinus.
- ground sloth — any of various extinct large, edentate mammals from the Pleistocene Epoch of North and South America resembling modern sloths but living on the ground rather than in trees.
- ground staff — The people who are paid to maintain a sports ground are called the ground staff.
- ground state — the state of least energy of a particle, as an atom, or of a system of particles.
- ground track — the path on the earth's surface below an aircraft, missile, rocket, or spacecraft.
- ground water — the water beneath the surface of the ground, consisting largely of surface water that has seeped down: the source of water in springs and wells.
- groundbursts — Plural form of groundburst.
- groundedness — the solid surface of the earth; firm or dry land: to fall to the ground.
- groundkeeper — groundskeeper.
- groundlessly — In a groundless manner; without justification.
- groundsheets — Plural form of groundsheet.
- groundstroke — A stroke played after the ball has bounced, as opposed to a volley.
- groundworker — One who works on the ground, as opposed to an aviator, etc.
- hadrosaurine — Hadrosaurid.
- honour-bound — morally obliged
- horrendously — shockingly dreadful; horrible: a horrendous crime.
- horse around — a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
- housetrained — Simple past tense and past participle of housetrain.
- hudson river — Henry, died 1611? English navigator and explorer.
- hydronautics — (nautical) The science of the design and construction of ships, their engines, and their instrumentation.
- hydroquinone — a white, crystalline compound, C 6 H 6 O 2 , formed by the reduction of quinone: used chiefly in photography and to inhibit autoxidation reactions.
- in our midst — among us
- in the round — having a flat, circular surface, as a disk.
- in-and-outer — a person who is by turns in and out of a particular situation, condition, venture, investment, etc.
- indecorously — not decorous; violating generally accepted standards of good taste or propriety; unseemly.
- infraduction — (medicine) The turning downward of a part, especially of the eye.
- introduction — the act of introducing or the state of being introduced.
- introductive — serving or used to introduce; preliminary; beginning: an introductory course; an introductory paragraph.
- introductory — serving or used to introduce; preliminary; beginning: an introductory course; an introductory paragraph.
- iracundulous — easily angered or irritable
- iron foundry — ironworks, forgery
- jordan curve — simple closed curve.