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19-letter words containing a, c, t, e, r

  • grocer's apostrophe — an apostrophe placed before a final s intended to indicate the plural but in fact forming the possessive
  • gulf of carpentaria — a shallow inlet of the Arafura Sea, in N Australia between Arnhem Land and Cape York Peninsula
  • half wave rectifier — A half wave rectifier removes the negative component of an alternating signal leaving only the positive part.
  • half-wave rectifier — a rectifier that changes only one half of a cycle of alternating current into a pulsating, direct current.
  • 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.
  • handlebar moustache — a man's moustache having long, curved ends that resemble the handlebars of a bicycle.
  • haul over the coals — a black or dark-brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Compare anthracite, bituminous coal, lignite.
  • heavy-water reactor — a nuclear reactor that uses heavy water as moderator
  • heel-and-toe racing — race walking.
  • hepatic portal vein — a vein connecting two capillary networks in the liver
  • heptachlorobiphenyl — (organic compound) Either of twenty-four isomers of the polychlorinated biphenyl containing seven chlorine atoms.
  • hermetically sealed — airtight
  • hermitian conjugate — adjoint (def 2).
  • historic episcopate — the derivation of the episcopate of a Church in historic succession from the apostles
  • 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.
  • human rights record — the facts that are known about the tendency of a country, regime, etc, to observe and protect human rights
  • huntington's chorea — a hereditary disease of the central nervous system characterized by brain deterioration and loss of control over voluntary movements, the symptoms usually appearing in the fourth decade of life.
  • hydrochlorothiazide — a crystalline, water-insoluble powder, C 7 H 8 ClN 3 O 4 S 2 , used as a diuretic and in the treatment of hypertension.
  • 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
  • hyper-nationalistic — a person devoted to nationalism.
  • hyperbolic cosecant — a hyperbolic function that is the reciprocal of hyperbolic sine
  • hypercholesteraemia — (medicine) An abnormally high level of cholesterol in the blood.
  • 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.
  • hypocholesterolemia — an abnormally low amount of cholesterol in the blood.
  • identification card — a card giving identifying data about a person, as full name, address, age, and color of hair and eyes, and often containing a photograph: for use as identification at a place of employment, school, club, etc.
  • identification mark — barcode or serial number
  • immigration officer — official administrating incoming foreigners
  • immunoprecipitation — the separation of an antigen from a solution by the formation of a large complex with its specific antibody.
  • impressionistically — In an impressionistic manner.
  • in commemoration of — in remembrance of
  • in consideration of — the act of considering; careful thought; meditation; deliberation: I will give your project full consideration.
  • in particular terms — If you say something in particular terms, you say it using a particular type or level of language or using language which clearly shows your attitude.
  • in the catbird seat — If you say that someone is in the catbird seat, you think that their situation is very good.
  • in-service training — training that is given to employees during the course of employment
  • incomplete abortion — a miscarriage in which some fetal or placental tissue remains in the uterus.
  • incomplete fracture — a fracture extending partly across the bone.
  • incremental plotter — a device that plots graphs on paper from computer-generated instructions
  • indemnity insurance — insurance covering against damage or loss
  • index of refraction — a number indicating the speed of light in a given medium as either the ratio of the speed of light in a vacuum to that in the given medium (absolute index of refraction) or the ratio of the speed of light in a specified medium to that in the given medium (relative index of refraction) Symbol: n.
  • index-tracking fund — an investment fund that is administered so that its value changes in line with a given share index
  • indirect addressing — indirect address
  • indirect initiative — a procedure in which a statute or amendment proposed by popular petition must receive legislative consideration before being submitted to the voters.
  • 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
  • inductive reactance — the opposition of inductance to alternating current, equal to the product of the angular frequency of the current times the self-inductance. Symbol: X L.
  • industrial accident — an accident that happens to an employee of an industrial company during the course of their work
  • industrial medicine — the study and practice of the health care of employees of large organizations, including measures to prevent accidents, industrial diseases, and stress in the workforce and to monitor the health of executives
  • indwelling catheter — a hollow tube left implanted in a body canal or organ, especially the bladder, to promote drainage.
  • information content — the amount of information in something
  • information officer — someone whose job is to give information to people
  • information science — the study of the nature, collection, and management of information and of its uses, especially involving computer storage and retrievals.
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