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17-letter words containing h, r, d, i, a

  • interrupt handler — (software)   A routine which is executed when an interrupt occurs. Interrupt handlers typically deal with low-level events in the hardware of a computer system such as a character arriving at a serial port or a tick of a real-time clock. Special care is required when writing an interrupt handler to ensure that either the interrupt which triggered the handler's execution is masked out (inhibitted) until the handler exits, or the handler is re-entrant so that multiple concurrent invocations will not interfere with each other. If interrupts are masked then the handler must execute as quickly as possible so that important events are not missed. This is often arranged by splitting the processing associated with the event into "upper" and "lower" halves. The lower part is the interrupt handler which masks out further interrupts as required, checks that the appropriate event has occurred (this may be necessary if several events share the same interrupt), services the interrupt, e.g. by reading a character from a UART and writing it to a queue, and re-enabling interrupts. The upper half executes as part of a user process. It waits until the interrupt handler has run. Normally the operating system is responsible for reactivating a process which is waiting for some low-level event. It detects this by a shared flag or by inspecting a shared queue or by some other synchronisation mechanism. It is important that the upper and lower halves do not interfere if an interrupt occurs during the execution of upper half code. This is usually ensured by disabling interrupts during critical sections of code such as removing a character from a queue.
  • isherwood framing — a system for framing steel vessels in which light, closely spaced, longitudinal frames are connected by heavy, widely spaced transverse frames with deep webs.
  • italian greyhound — one of an Italian breed of toy dogs resembling a greyhound.
  • jammu and kashmir — official name of Kashmir (def 2).
  • ladder-back chair — a chair with a back of two upright posts connected by horizontal slats
  • lanthanide series — the series of rare-earth elements of atomic numbers 57 through 71 (lanthanum through lutetium).
  • life and/or death — If you say that something is a matter of life and death, you are emphasizing that it is extremely important, often because someone may die or suffer great harm if people do not act immediately.
  • loggerhead shrike — a common, North American shrike, Lanius ludovicianus, gray above and white below with black wings, tail, and facial mask.
  • martha's vineyard — an island off SE Massachusetts: summer resort. About 100 sq. mi. (259 sq. km).
  • mass merchandiser — a retailer or retail store that seeks to sell large quantities of goods quickly through such means as discounting, customer self-service, or unadorned display and packaging, as in a warehouse.
  • mechanical digger — a machine used for excavation
  • medicochirurgical — pertaining to medicine and surgery.
  • microfiche reader — a machine that displays on a screen a magnified image of a microfiche
  • mies van der rohe — Ludwig [luhd-wig] /ˈlʌd wɪg/ (Show IPA), 1886–1969, U.S. architect, born in Germany.
  • mitochondrial dna — DNA found in mitochondria, which contains some structural genes and is generally inherited only through the female line
  • modulo arithmetic — modular arithmetic
  • muscle dysmorphia — a mental disorder primarily affecting males, characterized by obsessions about a perceived lack of muscularity, leading to compulsive exercising, use of anabolic steroids, etc. Compare body dysmorphic disorder.
  • nitroxanthic acid — picric acid.
  • northern rhodesia — former name of Zambia.
  • old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
  • old spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
  • orifice discharge — Orifice discharge is a model for calculating how quickly a fluid will come out of a punctured vessel or pipe.
  • orthovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts. Formula: H3VO4
  • overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
  • parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • parathyroidectomy — the excision of a parathyroid gland.
  • paratyphoid fever — Also called paratyphoid fever. an infectious disease, similar in some of its symptoms to typhoid fever but usually milder, caused by any of several bacilli of the genus Salmonella other than S. typhi.
  • partially sighted — unable to see properly so that even with corrective aids normal activities are prevented or seriously hindered
  • peripheral device — peripheral
  • perth and kinross — a council area of N central Scotland, corresponding mainly to the historical counties of Perthshire and Kinross-shire: part of Tayside Region from 1975 until 1996: chiefly mountainous, with agriculture, tourism, and forestry. Administrative centre: Perth. Pop: 135 990 (2003 est). Area: 5321 sq km (2019 sq miles)
  • phenylformic acid — benzoic acid.
  • platinic chloride — chloroplatinic acid.
  • prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
  • prusso-danish war — a war of 1864 between Prussia and Denmark by which Denmark lost Schleswig-Holstein.
  • pseudepigraphical — certain writings (other than the canonical books and the Apocrypha) professing to be Biblical in character.
  • pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
  • pull your head in — be quiet!
  • quick on the draw — having fast reflexes
  • radiation therapy — x-rays used as treatment
  • radio in the loop — Wireless Local Loop
  • radiometeorograph — a device for the automatic transmission by radio of the data from a set of meteorological instruments
  • read the riot act — an English statute of 1715 providing that if 12 or more persons assemble unlawfully and riotously, to the disturbance of the public peace, and refuse to disperse upon proclamation they shall be considered guilty of felony.
  • receding forehead — a forehead which slopes backwards
  • receding hairline — hair that is thinning at the front
  • red-backed shrike — a common Eurasian shrike, Lanius collurio, the male of which has a grey crown and rump, brown wings and back, and a black-and-white face
  • relative humidity — the amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure. Abbreviation: RH, rh.
  • reverse apartheid — a perceived bias against White people following the end of Apartheid
  • rheumatic disease — any of a group of diseases of the connective tissue, of uncertain causes, including rheumatoid arthritis, gout, and rheumatic fever
  • rheumatoid factor — an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.
  • rhode island bent — a European pasture grass, Agrostis tenuis, naturalized in North America, having red flower clusters.
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