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18-letter words starting with g

  • grandfather clause — U.S. History. a clause in the constitutions of some Southern states after 1890 intended to permit whites to vote while disfranchising blacks: it exempted from new literacy and property qualifications for voting those men entitled to vote before 1867 and their lineal descendants.
  • granulated surface — a roughened surface
  • granulation tissue — tissue formed in ulcers and in early wound healing and repair, composed largely of newly growing capillaries and so called from its irregular surface in open wounds; proud flesh.
  • grass-of-parnassus — any plant belonging to the genus Parnassia, of the saxifrage family, growing in marshy areas, having broad, smooth leaves and a single, pale flower.
  • grasshopper engine — a steam engine having a piston attached to one end of a beam that is hinged to an upright at the other end, the connecting rod being suspended from near the center of the beam.
  • gravitational lens — a heavy, dense body, as a galaxy, that lies along our line of sight to a more distant object, as a quasar, and whose gravitational field refracts the light of that object, splitting it into multiple images as seen from the earth.
  • gravitational mass — the mass of a body as measured by its gravitational attraction for other bodies.
  • gravitational pull — force of gravity
  • gravitational wave — (in general relativity) a propagating wave of gravitational energy produced by accelerating masses, especially during catastrophic events, as the gravitational collapse of massive stars.
  • gravity escapement — an escapement, used especially in large outdoor clocks, in which the impulse is given to the pendulum by means of a weight falling through a certain distance.
  • gray manganese ore — manganite.
  • grease the palm of — to influence by giving money to; bribe
  • great barrier reef — coral structure off Australian coast
  • great expectations — a novel (1861) by Charles Dickens.
  • great pastern bone — the part of the foot of a horse, cow, etc., between the fetlock and the hoof.
  • great sandy desert — a desert in NW Australia. About 300 miles (485 km) long; 500 miles (800 km) wide; about 160,000 sq. mi. (414,400 sq. km).
  • great white father — the president of the U.S.
  • great-circle track — the route of a ship following the arc of a great circle, appearing as a curved line on a Mercator chart and as a straight line on a gnomonic chart.
  • greater manchester — a metropolitan county in central England, with the city of Manchester as its center. 498 sq. mi. (1290 sq. km).
  • greater periwinkle — a Eurasian apocynaceous evergreen plant of the genus Vinca, V. major, having trailing stems and blue flowers
  • greater pichiciego — an armadillo, Burmeisteria retusa, similar to, but larger than, a pichiciego
  • greater roadrunner — either of two large terrestrial cuckoos of the genus Geococcyx of arid regions of the western U.S., Mexico, and Central America, especially G. californianus (greater roadrunner)
  • greater shearwater — a sooty-brown and white shearwater, Puffinus gravis, of eastern coasts of the Western Hemisphere.
  • greater yellowlegs — either of two American shorebirds having yellow legs, Tringa melanoleuca (greater yellowlegs) or T. flavipes (lesser yellowlegs)
  • green-backed heron — a small, American heron, Butorides striatus, having glossy green wings.
  • green-eyed monster — jealousy: Othello fell under the sway of the green-eyed monster.
  • greenhouse warming — the increase in the mean temperature of the earth attributed to the greenhouse effect
  • gregorian calendar — the reformed Julian calendar now in use, according to which the ordinary year consists of 365 days, and a leap year of 366 days occurs in every year whose number is exactly divisible by 4 except centenary years whose numbers are not exactly divisible by 400, as 1700, 1800, and 1900.
  • grist for the mill — If you say that something is grist for the mill, you mean that it is useful for a particular purpose or helps support someone's point of view.
  • grosse pointe park — a city in SE Michigan, near Detroit.
  • ground rule double — a safe hit ruled for two bases according to the rules of a particular stadium, as when a fly ball bounces once in the outfield and then clears a fence.
  • growing degree-day — a degree-day above 41°F (5°C), used in relation to plant growth.
  • grumbling appendix — a condition in which the appendix causes intermittent pain but appendicitis has not developed
  • guidance counselor — advisor in schools
  • gulf of california — an arm of the Pacific Ocean, between Sonora and Lower California
  • gulf saint vincent — a shallow inlet of SE South Australia, to the east of the Yorke Peninsula: salt industry
  • gulf stream system — a major ocean-current system consisting of the Gulf Stream and the Florida and North Atlantic currents.
  • gulliver's travels — a social and political satire (1726) by Jonathan Swift, narrating the voyages of Lemuel Gulliver to four imaginary regions: Lilliput, Brobdingnag, Laputa, and the land of the Houyhnhnms.
  • gum digger's spear — a long steel probe used by gum diggers digging for kauri gum
  • gyromagnetic ratio — the ratio of the magnetic moment of a rotating charged particle to its angular momentum.
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