17-letter words containing c, h, a, t
- hydrogasification — a high-temperature, high-pressure process for producing liquid or gaseous fuels from fine particles of coal and hydrogen gas
- hydrotherapeutics — hydrotherapy.
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
- hyperchlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
- hyperexcitability — an excessive reaction to stimuli.
- hyperintellectual — appealing to or engaging the intellect: intellectual pursuits.
- hypocholesteremia — an abnormally low amount of cholesterol in the blood.
- ichthyosarcotoxin — a term applied to any poison found in the flesh of poisonous fishes.
- icing on the cake — a sweet mixture, cooked or uncooked, for coating or filling cakes, cookies, and the like; icing.
- icositetrahedrons — Plural form of icositetrahedron.
- ignoratio elenchi — the fallacy of offering proof irrelevant to the proposition in question.
- image enhancement — a method of improving the definition of a video picture by a computer program, which reduces the lowest grey values to black and the highest to white: used for pictures from microscopes, surveillance cameras, and scanners
- immunotherapeutic — (immunology, medicine) Of a pharmaceutical, acting on the immune system to treat disease; used in immunotherapy.
- in the background — behind the focus of attention
- in the same canoe — of the same tribe
- indecipherability — Quality of being indecipherable.
- induction heating — a method of heating a conducting material, as metal in a furnace, by using electromagnetic induction to establish a current in the material.
- industrial school — a school for teaching one or more branches of industry; trade or vocational school.
- integrated school — (in New Zealand) a private or church school that has joined the state school system
- intertrochanteric — (anatomy) Between the two trochanters of the femur.
- iontophoretically — By means of iontophoresis.
- jack-in-the-green — (in England, formerly) a man who wore or supported a leaf-covered wooden framework while dancing in May-Day celebrations
- japanese chestnut — any of the several deciduous trees constituting the genus Castanea, of the beech family, having toothed, oblong leaves and bearing edible nuts enclosed in a prickly bur, and including C. dentata (American chestnut) which has been virtually destroyed by the chestnut blight, C. sativa (European chestnut) C. mollissima (Chinese chestnut) and C. crenata (Japanese chestnut)
- john of lancaster — Duke of Bedford, 1389–1435, Bedford, John of Lancaster, Duke of.
- junior technician — a rank in the RAF senior to aircraftman: comparable to that of private in the army
- kick in the pants — a reprimand or scolding designed to produce greater effort, enthusiasm, etc, in the person receiving it
- kitchen appliance — a machine intended for use in the kitchen, such as a fridge or a food processor
- knock on the head — to daze or kill (a person) by striking on the head
- laboratory school — a school maintained by a college or university for the training of student teachers.
- law of trichotomy — the property that for natural numbers a and b , either a is less than b , a equals b , or a is greater than b .
- lay it on (thick) — to exaggerate
- lazy daisy stitch — an embroidery stitch consisting of a long chain stitch, usually used in making flower patterns
- light machine gun — any air-cooled machine gun having a caliber not greater than 0.30 inches (7.6 mm).
- lithium carbonate — a colorless crystalline compound, Li 2 CO 3 , slightly soluble in water: used in ceramic and porcelain glazes, pharmaceuticals, and luminescent paints.
- local anaesthesia — the use of anaesthetics that affect a particular area of the body
- local anaesthetic — sth injected to numb a body part for pain relief
- lose the exchange — to lose a rook in return for a bishop or knight
- lower paleolithic — See under Paleolithic.
- maintained school — a school financially supported by the state
- manchester school — a school of economists in England in the first half of the 19th century, devoted to free trade and the repeal of the Corn Law, led by Richard Cobden and John Bright.
- manhattan project — U.S. History. the unofficial designation for the U.S. War Department's secret program, organized in 1942, to explore the isolation of radioactive isotopes and the production of an atomic bomb: initial research was conducted at Columbia University in Manhattan.
- manufactured home — a prefabricated house, assembled in modular sections.
- margaret thatcher — Margaret (Hilda) 1925–2013, British political leader: prime minister 1979–90.
- market researcher — a person who carries out market research
- mass spectrograph — a mass spectroscope for recording a mass spectrum on a photographic plate.
- massachusetts bay — an inlet of the Atlantic, off the E coast of Massachusetts.
- mechanical tissue — a plant tissue made up of hard, thick-walled cells that add strength to an organ
- mechanoelectrical — Describing the production of electricity by mechanical motion; especially in a transducer.
- memetic algorithm — (algorithm) A genetic algorithm or evolutionary algorithm which includes a non-genetic local search to improve genotypes. The term comes from the Richard Dawkin's term "meme". One big difference between memes and genes is that memes are processed and possibly improved by the people that hold them - something that cannot happen to genes. It is this advantage that the memetic algorithm has over simple genetic or evolutionary algorithms. These algorithms are useful in solving complex problems, such as the "Travelling Salesman Problem," which involves finding the shortest path through a large number of nodes, or in creating artificial life to test evolutionary theories. Memetic algorithms are one kind of metaheuristic. (07 July 1997)
- mental arithmetic — sums done in your head