17-letter words containing a, r, c, h, i, t
- hydraulic circuit — a circuit through which water or another liquid, instead of electric current, flows, but which otherwise operates in the same way as an electric circuit
- hydroelectrically — Using hydroelectric power.
- 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.
- icositetrahedrons — Plural form of icositetrahedron.
- ignoratio elenchi — the fallacy of offering proof irrelevant to the proposition in question.
- 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
- indecipherability — Quality of being indecipherable.
- 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
- junior technician — a rank in the RAF senior to aircraftman: comparable to that of private in the army
- 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 .
- lithium carbonate — a colorless crystalline compound, Li 2 CO 3 , slightly soluble in water: used in ceramic and porcelain glazes, pharmaceuticals, and luminescent paints.
- lower paleolithic — See under Paleolithic.
- 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
- merchant shipping — shipping which is involved in commerce (rather than defence, etc)
- microphanerophyte — any shrub or tree having a height of 2 to 8 metres
- microphotographic — Relating to microphotography.
- mischaracterizing — Present participle of mischaracterize.
- mitochondrial dna — DNA found in mitochondria, which contains some structural genes and is generally inherited only through the female line
- modulo arithmetic — modular arithmetic
- monochromatically — of or having one color.
- nakhon ratchasima — a city in central Thailand.
- nathaniel currier — Nathaniel, 1813–88, U.S. lithographer. Compare Ives (def 4).
- natural harmonics — harmonics of a note produced on a stringed instrument by lightly touching an open or unstopped sounded string.
- natural hat trick — three goals scored in succession by one player in one game or one period.
- nephelometrically — By means of nephelometry.
- neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
- neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
- nikita khrushchev — Nikita S(ergeyevich) [ni-kee-tuh sur-gey-uh-vich;; Russian nyi-kyee-tuh syir-gye-yuh-vyich] /nɪˈki tə sɜrˈgeɪ ə vɪtʃ;; Russian nyɪˈkyi tə syɪrˈgyɛ yə vyɪtʃ/ (Show IPA), 1894–1971, Russian political leader: premier of the U.S.S.R. 1958–64.
- nitroxanthic acid — picric acid.
- non-thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- north miami beach — a city in SE Florida.
- northern michigan — the peninsula between lakes Superior and Michigan constituting the N part of Michigan. Abbreviation: U.P.
- nuclear chemistry — the branch of chemistry concerned with nuclear reactions
- omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
- opisthobranchiate — (zoology) Of or pertaining to the Opisthobranchiata.
- organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.