12-letter words containing g, r, o, u
- 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.
- group of ten — the ten nations who met in Paris in 1961 to arrange the special drawing rights of the IMF: Belgium, Canada, France, Italy, Japan, Netherlands, Sweden, UK, US, and West Germany
- group theory — the branch of mathematics that deals with the structure of mathematical groups and mappings between them.
- groupuscules — Plural form of groupuscule.
- growth curve — a curve on a graph in which a variable is plotted against time to illustrate the growth of the variable
- gruesomeness — The characteristic or quality of being gruesome.
- guelder rose — a shrub, Viburnum opulus, of the honeysuckle family, native to the Old World, having broad clusters of white flowers and scarlet fruit.
- guelder-rose — a shrub, Viburnum opulus, of the honeysuckle family, native to the Old World, having broad clusters of white flowers and scarlet fruit.
- guest worker — a foreign worker permitted to work in a country, especially in Western Europe, on a temporary basis.
- gulf of riga — a large deep bay on the Baltic Sea
- gustave dore — (Paul) Gustave [pawl gy-stav] /pɔl güˈstav/ (Show IPA), 1832?–83, French painter, illustrator, and sculptor.
- gut reaction — instinctive response
- gutturonasal — articulated in the back of the mouth and given resonance in the nasal cavity, as the sound represented by (ng) in (ring).
- gymnocarpous — (of a fungus or lichen) having the apothecium open and attached to the surface of the thallus.
- gynantherous — having the stamens converted into pistils by the action of frost, disease, or insects.
- gypsum board — wallboard composed primarily of gypsum and often used as sheathing.
- harrisonburg — a city in N Virginia.
- hazel grouse — a European woodland grouse, Tetrastes bonasia, somewhat resembling the North American ruffed grouse.
- heliogravure — photoengraving.
- heterogamous — Genetics. having unlike gametes, or reproducing by the union of such gametes (opposed to isogamous).
- heterogenous — having its source or origin outside the organism; having a foreign origin.
- heterogonous — Botany. of or relating to monoclinous flowers of two or more kinds occurring on different individuals of the same species, the kinds differing in the relative length of stamens and pistils (opposed to homogonous).
- heterogynous — having females of two different kinds, one sexual and the other abortive or neuter, as ants.
- heterologous — Biology. of different origin; pertaining to heterology.
- heterozygous — having dissimilar pairs of genes for any hereditary characteristic.
- high country — a mountainous area below the timberline; a forested mountain area.
- high-wrought — highly agitated; overwrought.
- hillsborough — a town in W California.
- hippo regius — a seaport of ancient Numidia: St. Augustine was bishop here a.d. 395–430; the site of modern Annaba, in Algeria.
- horse guards — the mounted squadrons supplied by the Household Cavalry for ceremonial duties
- housewarming — a party to celebrate a person's or family's move to a new home.