16-letter words containing r, o, t, g
- grade separation — separation of the levels at which roads, railroads, paths, etc., cross one another in order to prevent conflicting rows of traffic or the possibility of accidents.
- gram atomic mass — the quantity of an element whose weight in grams is numerically equal to the atomic weight of the element.
- grand inquisitor — (often initial capital letters) the presiding officer of a court of inquisition.
- granger movement — a campaign for state control of railroads and grain elevators, especially in the north central states, carried on during the 1870s by members of the Patrons of Husbandry (the Grange) a farmers' organization that had been formed for social and cultural purposes.
- grant of probate — a certificate stating that a will is valid
- granulocytopenia — a diminished number of granulocytes in the blood, which occurs in certain forms of anaemia
- graphics adaptor — (hardware, graphics) (Or "graphics adapter", "graphics card", "video adaptor", etc.) A circuit board fitted to a computer, especially an IBM PC, containing the necessary video memory and other electronics to provide a bitmap display. Adaptors vary in the resolution (number of pixels) and number of colours they can display, and in the refresh rate they support. These parameters are also limited by the monitor to which the adaptor is connected. A number of such display standards, e.g. SVGA, have become common and different software requires or supports different sets.
- gravity platform — (in the oil industry) a drilling platform that rests directly on the sea bed and is kept in position by its own weight; it is usually made of reinforced concrete
- gravity railroad — a railroad depending partly on the force of gravity for motive power.
- great blue heron — a large American heron, Ardea herodias, having bluish-gray plumage.
- great depression — the economic crisis and period of low business activity in the U.S. and other countries, roughly beginning with the stock-market crash in October, 1929, and continuing through most of the 1930s.
- great horned owl — a large, brown-speckled owl, Bubo virginianus, common in the Western Hemisphere, having prominent ear tufts.
- great soil group — according to a system of classification that originated in Russia, any of several broad groups of soils with common characteristics usually associated with particular climates and vegetation types.
- greater-doxology — Gloria in Excelsis Deo.
- green revolution — an increase in food production, especially in underdeveloped and developing nations, through the introduction of high-yield crop varieties and application of modern agricultural techniques.
- gregory of tours — Saint, a.d. 538?–594, Frankish bishop and historian.
- grid declination — the angular difference between true north and grid north on a map
- grind your teeth — If you grind your teeth, you rub your upper and lower teeth together as though you are chewing something.
- grit one's teeth — abrasive particles or granules, as of sand or other small, coarse impurities found in the air, food, water, etc.
- gross misconduct — a proven crime in connection with employment that is serious enough to require dismissal
- ground substance — Also called matrix. the homogeneous substance in which the fibers and cells of connective tissue are embedded.
- ground-to-ground — (of weapons) designed to be fired at ground targets from the ground
- grounded neutral — Grounded neutral is the situation in which the neutral wire of an electrical supply system is connected to ground.
- group identifier — (operating system) (gid) A unique number, between 0 an 32767, identifying a set of users under Unix. Gids are found in the /etc/passwd and /etc/group databases (or their NIS equivalents) and one is also associated with each file, indicating the group to which its group permissions apply.
- growth potential — capability of expanding
- growth substance — any substance, produced naturally by a plant or manufactured commercially, that, in very low concentrations, affects plant growth; a plant hormone
- guaranteed stock — stock for which dividends are guaranteed by a company other than the one issuing the stock.
- gulf of martaban — an inlet of the Bay of Bengal in Myanmar
- gum up the works — exertion or effort directed to produce or accomplish something; labor; toil.
- gun control laws — the laws that restrict the possession and use of guns
- gyratory crusher — A gyratory crusher is a crusher in which a cone-shaped rod rotates in a cone-shaped bowl.
- hammer and tongs — with great vigor, determination, or vehemence: When he starts a job he goes at it hammer and tongs.
- hang around with — to associate or socialize with
- heterosuggestion — Suggestion from outside.
- high court judge — a judge who sits in the High Court
- high/great hopes — If you have high hopes or great hopes that something will happen, you are confident that it will happen.
- higher education — education beyond high school, specifically that provided by colleges and graduate schools, and professional schools.
- historiographies — Plural form of historiography.
- homeric laughter — loud, hearty laughter, as of the gods.
- horary astrology — a method through which the answer to a question is sought by casting and interpreting a horoscope for the precise moment one learns of an event, problem, career opportunity, etc.
- horseshoe magnet — a horseshoe-shaped permanent magnet.
- horsetail agaric — the shaggy-mane.
- hot cold-working — metalworking at considerable heat but below the temperature at which the metal recrystallizes: a form of cold-working.
- housing shortage — a deficiency or lack in the number of houses needed to accommodate the population of an area
- hummingbird moth — hawk moth.
- hydrometeorology — the study of atmospheric water, especially precipitation, as it affects agriculture, water supply, flood control, power generation, etc.
- hygrothermograph — an instrument for recording temperature and relative humidity.
- hyperconjugation — (organic chemistry) A weak form of conjugation in which single bonds interact with a conjugated system.
- hyperoxygenation — to treat, combine, or enrich with oxygen: to oxygenate the blood.
- immigration laws — regulations on incoming foreigners