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17-letter words containing r, a, c, h

  • fourfold purchase — a tackle that is composed of a rope passed through two fourfold blocks in such a way as to provide mechanical power in the ratio of 1 to 5 or 1 to 4, depending on whether hauling is done on the running or the standing block and without considering friction. Compare tackle (def 2).
  • freight insurance — insurance paid on goods in transport
  • french provincial — noting, pertaining to, or resembling a style of furnishings and decoration originating in the provinces of France in the 18th century, derived from but less ornate than styles then current in Paris and featuring simply carved wood furniture, often with decorative curved moldings.
  • french somaliland — a former name of Djibouti (def 1).
  • further education — adult education.
  • gas chromatograph — a chromatograph used for the separation of volatile substances.
  • gaucher's disease — a rare inherited disorder of fat metabolism that causes spleen and liver enlargement, abnormal fragility and pain of the bones, and progressive neurologic disturbances, leading to early death.
  • general discharge — a discharge from military service of a person who has served honorably but who has not met all the conditions of an honorable discharge.
  • genetic algorithm — (GA) An evolutionary algorithm which generates each individual from some encoded form known as a "chromosome" or "genome". Chromosomes are combined or mutated to breed new individuals. "Crossover", the kind of recombination of chromosomes found in sexual reproduction in nature, is often also used in GAs. Here, an offspring's chromosome is created by joining segments choosen alternately from each of two parents' chromosomes which are of fixed length. GAs are useful for multidimensional optimisation problems in which the chromosome can encode the values for the different variables being optimised.
  • geographical mile — nautical mile.
  • gestatorial chair — a ceremonial chair on which the pope is carried
  • glastonbury chair — a folding chair having legs crossed front-to-back and having arms connected to the back and to the front seat rail.
  • go for the collar — to go without a hit in a game
  • good-time charlie — an affable, sociable, pleasure-loving man.
  • grande chartreuse — the Carthusian monastery at Grenoble, France: the chief monastery of the Carthusians until 1903.
  • grandfather clock — a pendulum floor clock having a case as tall as or taller than a person; tall-case clock; long-case clock.
  • grandmother clock — a pendulum clock similar to a grandfather's clock but shorter.
  • graphic equalizer — an equalizer in an audio system that is controlled by sliders that show graphically and correct the frequency response within the preset frequency range.
  • green peach aphid — an aphid, Myzus persicae, that is a pest of many fruit trees, ornamentals, and vegetables and a vector of certain viral plant diseases.
  • greenwich village — a section of New York City, in lower Manhattan: inhabited and frequented by artists, writers, and students.
  • grid merchandiser — A grid merchandiser is a lightweight, free-standing, flexible fixture made up of moveable grids of wire and used by retailers can display large volumes of merchandise in a small space.
  • haematocrystallin — Alternative form of hematocrystallin.
  • haemorrhoidectomy — surgical removal of haemorrhoids
  • hairline fracture — a very fine crack in a bone
  • half-round chisel — a cold chisel with a semicircular cutting edge used for making narrow channels
  • hall of residence — Halls of residence are buildings with rooms or flats, usually built by universities or colleges, in which students live during the term.
  • hammer and sickle — the emblem of the Soviet Union, adopted in 1923 and consisting of an insignia of a hammer with its handle across the blade of a sickle and a star above.
  • hammered dulcimer — dulcimer (sense 1)
  • handicap register — a list of the disabled people in its area that a local authority had a duty to compile under the Chronically Sick and Disabled Persons Act 1970
  • hard nut to crack — a dry fruit consisting of an edible kernel or meat enclosed in a woody or leathery shell.
  • hard rock geology — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
  • hard-shelled clam — quahog
  • hard-shelled crab — a crab, esp. an edible sea crab, before it has shed its hard shell
  • harmonic analysis — the calculation of Fourier series and their generalization.
  • harmonic interval — an intervening period of time: an interval of 50 years.
  • haroun-al-raschid — Harun al-Rashid.
  • hasbrouck heights — a borough in NE New Jersey.
  • health care proxy — a legal document in which a person can appoint someone to make decisions about medical treatment in the event that he or she is no longer mentally competent or able to communicate.
  • heimlich maneuver — an emergency rescue procedure for application to someone choking on a foreign object, in which the rescuer places a fist between the victim's lower ribs or upper abdomen from behind and exerts sudden pressure in the form of thrusts of sufficient force to help eject the object from the windpipe.
  • helicopter parent — a style of child rearing in which an overprotective mother or father discourages a child's independence by being too involved in the child's life: In typical helicopter parenting, a mother or father swoops in at any sign of challenge or discomfort.
  • hemoconcentration — an increase in the concentration of cellular elements in the blood, resulting from loss of plasma.
  • hemorrhagic fever — any of several arbovirus infections, as dengue, characterized by fever, chills, and malaise followed by hemorrhages of capillaries, sometimes leading to kidney failure and death.
  • henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
  • herbaceous border — A herbaceous border is a flower bed containing a mixture of plants that flower every year.
  • heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
  • high-carbon steel — steel containing between 0.5 and 1.5 per cent carbon
  • higher arithmetic — arithmetic (def 2).
  • hippocampal gyrus — a convolution on the inner surface of the temporal lobe of the cerebrum, bordering the hippocampus.
  • histamine blocker — any of various substances that act at a specific receptor site to block certain actions of histamine.
  • historical method — the process of establishing general facts and principles through attention to chronology and to the evolution or historical course of what is being studied.
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