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17-letter words containing a, r, c, h, i, t

  • sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
  • south west africa — a former name of Namibia.
  • south-west africa — a former name of Namibia.
  • spectroheliograph — an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.
  • square the circle — a rectangle having all four sides of equal length.
  • stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
  • stare in the face — to gaze fixedly and intently, especially with the eyes wide open.
  • stochastic matrix — a square matrix with positive entries totaling 1 in each row.
  • support mechanism — any formal system or method of providing support or assistance
  • synchronistically — coincidence in time; contemporaneousness; simultaneousness.
  • teacher education — training to become a teacher, usually at an institution of higher education
  • teaching practice — Teaching practice is a period that a student teacher spends teaching at a school as part of his or her training.
  • teaching software — computer software for use in providing online education
  • technical drawing — the study and practice, esp as a subject taught in school, of the basic techniques of draughtsmanship, as employed in mechanical drawing, architecture, etc
  • technical support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
  • terephthalic acid — a white, crystalline, water-insoluble solid, C 8 H 6 O 2 , the para isomer of phthalic acid: used chiefly in the manufacture of resins and textile fibers.
  • the bag of tricks — every device; everything
  • the carboniferous — the Carboniferous period or rock system
  • the confederation — the original 13 states of the United States of America constituted under the Articles of Confederation and superseded by the more formal union established in 1789
  • the final curtain — the closing of the curtain at the end of the action of a play
  • the varsity match — a sporting fixture between Oxford and Cambridge university rugby teams
  • the water carrier — the constellation Aquarius, the 11th sign of the zodiac
  • theatricalization — to put into dramatic or theatrical form; dramatize.
  • thematic approach — teaching organized by theme rather than by school subject
  • therapeutic index — the ratio between the dosage of a drug that causes a lethal effect and the dosage that causes a therapeutic effect.
  • therapeutic touch — the laying on of hands by a healer
  • thermocoagulation — the coagulation of tissue by heat-producing high-frequency electric currents, used therapeutically to remove small growths or to create specific lesions in the brain.
  • thiosulfuric acid — an acid, H 2 S 2 O 3 , that may be regarded as sulfuric acid with one oxygen atom replaced by sulfur.
  • third commandment — “Thou shalt not take the name of the Lord thy God in vain”: third of the Ten Commandments.
  • threshing machine — a machine for removing grains and seeds from straw and chaff.
  • throat microphone — a microphone worn around the throat and actuated by vibrations of the larynx, used when background noise would obscure the sound of speech, as in an airplane cockpit.
  • to strike a chord — If something strikes a chord with you, it makes you feel sympathy or enthusiasm.
  • tortoiseshell cat — a domestic cat, especially a female one, of variegated black, yellow, and white coloring.
  • travancore-cochin — a former Indian state that was a merger of Travancore and Cochin, two former princely states of India, and which became part of Kerala state in 1956
  • trick photography — photography that creates an illusion
  • trigger mechanism — a physiological or psychological process caused by a stimulus and resulting in a usually severe reaction.
  • trucial sheikdoms — an independent federation in E Arabia, formed in 1971, now comprising seven emirates on the S coast (formerly, Pirate Coast or Trucial Coast) of the Persian Gulf, formerly under British protection: Abu Dhabi, Dubai, Sharjah, Ajman, Umm al-Qaiwain, Ras al-Khaimah (joined 1972), and Fujairah. About 32,300 sq. mi. (83,657 sq. km). Capital: Abu Dhabi. Abbreviation: U.A.E.
  • twelve patriarchs — any of the sons of Jacob ((the twelve patriarchs),) from whom the tribes of Israel were descended.
  • upper paleolithic — See under Paleolithic.
  • varix lymphaticus — a similar condition affecting an artery or lymphatic vessel
  • victoriano huerta — Victoriano [beek-taw-ryah-naw] /ˌbik tɔˈryɑ nɔ/ (Show IPA), 1854–1916, Mexican general: provisional president of Mexico 1913–14.
  • vulcan death grip — (jargon)   A variant of Vulcan nerve pinch derived from a Star Trek classic epsisode where a non-existant "Vulcan death grip" was used to fool Romulans that Spock had killed Kirk.
  • warehouse receipt — a receipt for goods placed in a warehouse.
  • warehousing costs — the costs involved in storing goods in a warehouse
  • willow flycatcher — a North American flycatcher, Empidonax alnorum, of alder thickets and other moist areas, that has greenish-brown upper parts and whitish underparts and is almost indistinguishable except by voice from E. traillii (willow flycatcher)
  • wimshurst machine — a device for the production of electric charge by electrostatic induction, consisting of two oppositely rotating glass or mica disks carrying metal strips upon which charges are induced and subsequently removed by contact with metallic combs.
  • wind chill factor — A wind chill factor is a measure of the cooling effect of the wind on the temperature of the air.
  • wind-chill factor — the apparent temperature felt on the exposed human body owing to the combination of temperature and wind speed.
  • with a difference — If you describe a job or holiday, for example, as a job with a difference or a holiday with a difference, you mean that the job or holiday is very interesting and unusual.
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