17-letter words containing c, h, i, r, a
- schiff-s--reagent — a solution of rosaniline and sulfurous acid in water, used to test for the presence of aldehydes.
- scratch 'n' sniff — denoting a product that releases a smell when scratched
- scrophulariaceous — belonging to the Scrophulariaceae, the figwort family of plants.
- semi-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
- share certificate — a certificate of deposit issued by a credit union.
- shipping articles — articles of agreement.
- shirt-tail cousin — a distant cousin
- shoestring tackle — a tackle made around the ankles of the ball carrier.
- shooting practice — practice in shooting for soldiers or other people who shoot guns
- shorter catechism — one of the two catechisms established by the Westminster Assembly in 1647, used chiefly in Presbyterian churches.
- significant other — Sociology. a person, as a parent or peer, who has great influence on one's behavior and self-esteem.
- sinclair research — (company) A British microelectronics developer and manufacturer. Evolving from Sinclair Radionics in 1979, Sinclair Research was owned by Sir Clive Sinclair. Sinclair Radionics produced electronic components and devices (such as calculators and pocket radios and televisions), but Sinclair Research began by producing some of the first 8-bit home microcomputers. Sinclair produced five microcomputers from 1980 to 1987, all based on the Zilog Z80 microprocessor (except for the QL, which used the Motorola 68008 - a variant on the 68000). The 1K kit-build ZX80, introduced in 1980, was followed by the 1K ZX81 (expandable to 16K) in 1981, the 16K (expandable to 48K) ZX Spectrum in 1982 (then superseded by two distinct 48K models and a 128K model in 1986) and the QL (Quantum Leap) in 1984. A portable laptop computer, the Z88, was released in 1987 under the Cambridge Computers banner. Of them all, the ZX Spectrum was the best known, and it went on to become the most popular microcomputer of its time in the United Kingdom and in many other territories. This was partly due to its ease of use, and also due to its enormous software catalogue, covering games, word processing, music, programming and graphics. Glorious "mine's-better-than-yours" battles were fought (and still are today) between owners of Spectrums and Commodore 64s over who had the best machine. Sir Clive's financial problems in the mid-80s led him to sell the rights to the Sinclair brand to Amstrad in April 1986. This led to further models of the Spectrum being released from 1986 to 1988 and also an IBM PC-compatible based internally on Amstrad's own PC range. Sir Clive was not involved with the production of these computers, and no computer with the Sinclair name has been produced since.
- sister of charity — a member of one of several congregations of sisters founded in 1634 by St. Vincent de Paul.
- smarandache logic — neutrosophic logic
- socratic elenchus — the drawing out of the consequences of a position in order to show them to be contrary to some accepted position
- sodium bichromate — 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.
- 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.
- spanish civil war — the civil war in Spain 1936–39.
- 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.
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spruce gall aphid — any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.
- 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.