18-letter words containing t, r
- 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.
- 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-eyed monster — jealousy: Othello fell under the sway of the green-eyed monster.
- 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.
- 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.
- gyromagnetic ratio — the ratio of the magnetic moment of a rotating charged particle to its angular momentum.
- half-open interval — a set of numbers between two given numbers but including only one endpoint.
- hamilton's problem — Hamiltonian problem
- handkerchief table — corner table.
- handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
- harnessed antelope — any African antelope of the genus Tragelaphus, especially the bushbuck, having the body marked with white stripes and spots that resemble a harness, and, in the male, long, gently spiraling horns.
- haud your wheesht! — be silent! hush!
- haulage contractor — a person or firm that transports goods by lorry
- have by the throat — to have compete control over (a person or thing)
- have money to burn — to have more money than one needs, so that some can be spent foolishly
- have the better of — of superior quality or excellence: a better coat; a better speech.
- have words with sb — If one person has words with another, or if two or more people have words, they have a serious discussion or argument, especially because one has complained about the other's behaviour.
- hawksbill (turtle) — a medium-sized marine turtle (Eretmochelys imbricata, family Cheloniidae) having a hawklike beak and a horny shell from which tortoise shell is obtained
- headquarters staff — the people who work at the headquarters of an organization
- health care worker — A health care worker is someone who works in a hospital or health centre.
- hearing impairment — partial deafness
- heart-lung machine — a device through which blood is shunted temporarily for oxygenation during surgery, while the heart or a lung is being repaired.
- heart-rate monitor — a machine that monitors or records a person's heart rate
- hearts and flowers — maudlin sentimentality: The play is a period piece, full of innocence abused and hearts and flowers.
- heating degree-day — a degree-day below the standard temperature of 65°F or 19°C, used in estimating fuel consumption.
- helicopter gunship — military attack helicopter
- helicopter station — a place where helicopters are kept in readiness for use
- hell or high water — whatever difficulties may arise
- hemicorporectomies — Plural form of hemicorporectomy.
- hemorrhoidectomies — Plural form of hemorrhoidectomy.
- hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
- herringbone stitch — a type of cross-stitch in embroidery similar to the catch stitch in sewing, consisting of an overlapped V -shaped stitch that when worked in a continuous pattern produces a twill-weave effect.
- heteroscedasticity — (statistics) The property of a series of random variables of 'not' every variable having the same finite variance.