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19-letter words containing c, h, i, n, e, d

  • halt and catch fire — (humour, processor)   (HCF) Any of several undocumented and semi-mythical machine instructions with destructive side-effects, supposedly included for test purposes on several well-known architectures going as far back as the IBM 360. The Motorola 6800 microprocessor was the first for which an HCF opcode became widely known. This instruction caused the processor to read every memory location sequentially until reset.
  • heel-and-toe racing — race walking.
  • highland clearances — in Scotland, the removal, often by force, of the people from some parts of the Highlands to make way for sheep, during the eighteenth and nineteenth centuries
  • holy innocents' day — December 28, a day of religious observance commemorating the slaughter of the children of Bethlehem by Herod's order.
  • honorable discharge — a discharge from military service of a person who has fulfilled obligations efficiently, honorably, and faithfully.
  • horizontal encoding — (processor)   An instruction set where each field (a bit or group of bits) in an instruction word controls some functional unit or gate directly, as opposed to vertical encoding where instruction fields are decoded (by hard-wired logic or microcode) to produce the control signals. Horizontal encoding allows all possible combinations of control signals (and therefore operations) to be expressed as instructions whereas vertical encoding uses a shorter instruction word but can only encode those combinations of operations built into the decoding logic. An instruction set may use a mixture of horizontal and vertical encoding within each instruction. Because an architecture using horizontal encoding typically requires more instruction word bits it is sometimes known as a very long instruction word (VLIW) architecture.
  • hotel accommodation — the facilities and the quality of accommodation provided by a hotel
  • household insurance — an arrangement in which you pay money to a company, and they pay money to you if your household goods are stolen or damaged
  • hudson river school — a group of American painters of the mid-19th century whose works are characterized by a highly romantic treatment of landscape, especially along the Hudson River.
  • human rights record — the facts that are known about the tendency of a country, regime, etc, to observe and protect human rights
  • hydrostatic balance — a balance for finding the weight of an object submerged in water in order to determine the upthrust on it and thus determine its relative density
  • hydroxybenzoic acid — Hydroxybenzoic acid is the active ingredient in a number of drugs, for example, aspirin. Hydroxybenzoic acid is also used as a preservative.
  • hyperfocal distance — the distance, at a given f number, between a camera lens and the nearest point (hyperfocal point) having satisfactory definition when focused at infinity.
  • in the catbird seat — If you say that someone is in the catbird seat, you think that their situation is very good.
  • in the second place — secondly
  • induction hardening — a process in which the outer surface of a metal component is rapidly heated by means of induced eddy currents. After rapid cooling the resulting phase transformations produce a hard wear-resistant skin
  • indwelling catheter — a hollow tube left implanted in a body canal or organ, especially the bladder, to promote drainage.
  • intermediate school — a school for pupils in grades 4 through 6.
  • john c breckinridge — John Cabell, 1821–75, vice president of the U.S. 1857–61: Confederate general in the American Civil War.
  • king charles's head — a fixed idea; personal obsession
  • landscape architect — A landscape architect is the same as a landscape gardener.
  • macaroni and cheese — pasta with cheese sauce
  • magnetohydrodynamic — Of or pertaining to magnetohydrodynamics.
  • manchester encoding — (communications, protocol)   A method of transmitting bits which enables the receiver to easily synchronise with the sender. A simple way of signalling bits might be to transmit a high voltage for some period for a 1-bit and a low voltage for a 0 bit: Bits Sent: 1 1 0 0 Signal: High ___ Low |___ Time: -> . . . . . However, when several identical bits are sent in succession, this provides no information to the receiver about when each bit starts and stops. Manchester encoding splits each bit period into two, and ensures that there is always a transition between the signal levels in the middle of each bit. This allows the receiver to synchronise with the sender. In normal Manchester encoding, a 1-bit is transmitted with a high voltage in the first period, and a low voltage in the second, and vice verse for the 0 bit: Bits Sent: 1 1 0 0 Signal: High Low || |_| || Time: -> . ' . ' . ' . ' . In Differential Manchester encoding, a 1-bit is indicated by making the first half of the signal equal to the last half of the previous bit's signal and a 0-bit is indicated by making the first half of the signal opposite to the last half of the previous bit's signal. That is, a zero bit is indicated by a transition at the beginning of the bit. Like normal Manchester encoding, there is always a transition in the middle of the transmission of the bit. Differential Manchester Encoding Bits Sent: 1 1 0 0 Signal: High __ Low |_| || || Time: -> . ' . ' . ' . ' . With each bit period half as long, twice as much bandwidth is required when using either of the Manchester encoding schemes.
  • manned space flight — space travel in vehicles with a human crew
  • minor seventh chord — a chord consisting of a minor triad with an added minor seventh above the root
  • moses-in-the-cradle — a plant, Rhoeo spathacea, native to the West Indies and Central America, having leaves with purple undersides and white flowers enclosed in a boat-shaped envelope formed by two bracts.
  • neighbourhood watch — a scheme under which members of a community agree together to take responsibility for keeping an eye on each other's property, as a way of preventing crime
  • neuropsychodynamics — The theoretical synthesis of neuroscience and psychodynamics.
  • new zealand spinach — a plant, Tetragonia tetragonioides, of warm regions, cultivated for its edible leaves, eaten as a vegetable.
  • night-scented stock — a plant, Matthiola bicornis, of the genus Matthiola, of the Mediterranean region, cultivated for its brightly coloured flowers: Brassicaceae (crucifers)
  • no strings attached — without conditions
  • northwest ordinance — the act of Congress in 1787 providing for the government of the Northwest Territory and setting forth the steps by which its subdivisions might become states.
  • orthopaedic surgeon — a surgeon specializing in the branch of surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
  • overhead projection — the projection (using an overhead projector) of an enlarged image of a transparency onto a surface above and behind the person using it
  • palisade parenchyma — the upper layer of ground tissue in a leaf, consisting of elongated cells beneath and perpendicular to the upper epidermis and constituting the primary area of photosynthesis.
  • paradichlorobenzene — a white, crystalline, volatile, water-insoluble solid, C 6 H 4 Cl 2 , of the benzene series, having a penetrating odor: used chiefly as a moth repellent.
  • phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
  • physical addressing — (networking)   The low level addressing scheme used on Ethernet. The 48-bit destination Ethernet address in a packet is compared with the receiving node's Ethernet address. Compare IP address.
  • pied-de-biche spoon — a spoon having a handle with a trifid end.
  • pocket-handkerchief — handkerchief (def 1).
  • priority scheduling — (operating system)   Processes scheduling in which the scheduler selects tasks to run based on their priority as opposed to, say, a simple round-robin. Priorities may be static or dynamic. Static priorities are assigned at the time of creation, while dynamic priorities are based on the processes' behaviour while in the system. For example, the scheduler may favour I/O-intensive tasks so that expensive requests can be issued as early as possible. A danger of priority scheduling is starvation, in which processes with lower priorities are not given the opportunity to run. In order to avoid starvation, in preemptive scheduling, the priority of a process is gradually reduced while it is running. Eventually, the priority of the running process will no longer be the highest, and the next process will start running. This method is called aging.
  • psychic determinism — the theory that all aspects of a person's psychological makeup arise from specific causes or forces, as previous experiences or instinctual drives, which may be conscious or unconscious.
  • psychoendocrinology — the study of the relationship between the endocrine system and various symptoms or types of mental illness.
  • regular icosahedron — an icosahedron in which each of the faces is an equilateral triangle
  • reticuloendothelial — pertaining to, resembling, or involving cells of the reticuloendothelial system.
  • rhodesian ridgeback — a large short-haired breed of dog characterized by a ridge of hair growing along the back in the opposite direction to the rest of the coat. It was originally a hunting dog from South Africa
  • run-length encoding — A kind of compression algorithm which replaces sequences ("runs") of consecutive repeated characters (or other units of data) with a single character and the length of the run. This can either be applied to all input characters, including runs of length one, or a special character can be used to introduce a run-length encoded group. The longer and more frequent the runs are, the greater the compression that will be achieved. This technique is particularly useful for encoding black and white images where the data units would be single bit pixels.
  • samuel de champlain — Samuel de [sam-yoo-uh l duh;; French sa-my-el duh] /ˈsæm yu əl də;; French sa müˈɛl də/ (Show IPA), 1567–1635, French explorer in the Americas: founder of Quebec; first colonial governor 1633–35.
  • sandwich generation — the generation of people still raising their children while having to care for their aging parents.
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