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18-letter words containing t, a, g, h, i

  • orthotungstic acid — an oxyacid acid of tungsten. Formula: H2WO4
  • overnight telegram — a type of domestic telegram sent at a reduced rate with a minimum charge for 10 words or less and accepted until midnight for delivery the following day.
  • parachute regiment — an airborne regiment of an army
  • paraglyph printing — the printing of the positive and negative of a radiograph superimposed in slight misalignment to give the effect of a relief.
  • parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • pathologic anatomy — the branch of pathology dealing with the morphologic changes in tissues.
  • phantasmagorically — having a fantastic or deceptive appearance, as something in a dream or created by the imagination.
  • phase-shift keying — (communications)   (PSK) A digital modulation scheme that conveys data by changing the phase of a carrier wave. The data can either determine the absolute phase relative to the unmodulated carrier or reference signal ("coherent phase-shift keying", CPSK) or the change in phase ("differential phase-shift keying", DPSK). The number of different phases used determines the amount of data that can be transmitted in each cycle. Each cycle can be considered to constitute one "symbol", e.g. with two possible phases, each cycle carries one bit. The more phases that are used, the less tollerant to noise the transmissions becomes. Alternatives to PSK are amplitude-shift keying (ASK) and frequency-shift keying (FSK).
  • photochemical smog — air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust.
  • phytohemagglutinin — a lectin, obtained from the red kidney bean, that binds to the membranes of T cells and stimulates metabolic activity, cell division, etc.
  • pigmy hippopotamus — a related but smaller animal, Choeropsis liberiensis
  • positively charged — having a positive charge
  • proprietary rights — rights of ownership
  • psychopathological — the science or study of mental disorders.
  • punishment beating — a form of corporal punishment carried out by a paramilitary organization on a member of another sectarian organization, usually in Northern Ireland
  • pygmy hippopotamus — a small hippopotamus, Choeropsis liberiensis, of forests and swamps in western Africa.
  • rear its ugly head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
  • registered charity — official aid organization
  • resistance fighter — someone who fights (for freedom, etc) against an invader in an occupied country, or against their government, etc, often secretly or illegally
  • rhyming dictionary — a specialist dictionary organized by the final sounds of words, used to write poetry
  • right-to-work laws — a state law making it illegal to refuse employment to a person for the sole reason that he or she is not a union member.
  • say/kiss goodnight — If you say goodnight to someone or kiss them goodnight, you say something such as 'Goodnight' to them or kiss them before one of you goes home or goes to sleep.
  • shape-note singing — a traditional style of a capella singing using shape-note notation.
  • shipping container — a large, strong container, usually of metal, used to store goods in during shipment
  • shugart associates — (company)   The disk drive company, founded by Alan F. Shugart, which developed SCSI. Alan left Shugart Associates in 1974 [did he quit or was he fired?]. Shugart Associates was bought, and eventually shut down by Xerox.
  • shunting operation — an operation in which rail coaches are manoeuvred
  • sign of the zodiac — one of the twelve constellations along the path of the ecliptic.
  • snake in the grass — a treacherous person, especially one who feigns friendship.
  • sociotechnological — of, relating to, or signifying the combination or interaction of social and technological factors.
  • soft touch sealing — Soft touch sealing is a copolymer seal for a tank, with characteristics designed for softness, used instead of a metal seal to help avoid fire when sparks are generated.
  • solid-fuel heating — heating that uses solid fuel, such as coal or coke
  • something to spare — a surplus of something
  • spaghetti junction — an interchange, usually between motorways, in which there are a large number of underpasses and overpasses and intersecting roads used by a large volume of high-speed traffic
  • spectroheliography — the process of obtaining an image of the sun in light of a particular wavelength, such as calcium or hydrogen, showing the distribution of the element over the surface and in the solar atmosphere, using a spectroheliograph
  • spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
  • spherical triangle — a triangle formed by arcs of great circles of a sphere.
  • stinking chamomile — mayweed.
  • strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
  • stratigraphic trap — A stratigraphic trap is a rock formation that contains hydrocarbons and is sealed by other rock formations.
  • swedish gymnastics — a system of passive and active exercising of muscles and joints
  • sympathetic string — a thin wire string, as in various obsolete musical instruments, designed to vibrate sympathetically with the bowed or plucked strings to reinforce the sound.
  • teaching assistant — a graduate student in a college or university who is the recipient of a teaching fellowship. Abbreviation: TA.
  • teaching equipment — teaching aids
  • technical sergeant — a noncommissioned officer ranking below a master sergeant and above a staff sergeant.
  • the beautiful game — football
  • the damage is done — If you say 'the damage is done', you mean that it is too late now to prevent the harmful effects of something that has already happened.
  • the electronic age — the electronic age began when electronic equipment, including computers came into use
  • the general public — the people in a society; people in general
  • the grand national — an annual steeplechase run at Aintree, Liverpool, since 1839
  • the intelligentsia — the educated or intellectual people in a society or community
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