17-letter words containing c, h, i, r
- further education — adult education.
- 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.
- globus hystericus — the sensation of having a lump in the throat or difficulty in swallowing for which no medical cause can be found.
- good-time charlie — an affable, sociable, pleasure-loving man.
- 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
- 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.
- 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.
- high commissioner — a representative of one sovereign member of the Commonwealth of Nations in the country of another, having a rank and responsibilities generally similar to those of an ambassador.
- high-carbon steel — steel containing between 0.5 and 1.5 per cent carbon
- higher arithmetic — arithmetic (def 2).
- hillcrest heights — a city in central Maryland, near Washington, D.C.
- 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.
- historical school — a school of economists that arose in Germany in the 19th century in reaction to the principles of the classical economists, and that maintained that the factors making up an economy are variable and develop out of social institutions.
- historiographical — the body of literature dealing with historical matters; histories collectively.
- hit for the cycle — any complete round or series of occurrences that repeats or is repeated.
- ho chi minh trail — a network of jungle paths winding from North Vietnam through Laos and Cambodia into South Vietnam, used as a military route by North Vietnam to supply the Vietcong during the Vietnam War.
- homeland security — national defence
- homework exercise — an exercise that is set as homework
- horatio kitchener — Horatio Herbert (1st Earl Kitchener of Khartoum and of Broome) 1850–1916, English field marshal and statesman.
- hornblende schist — a variety of schist containing needles of hornblende that lie in parallel planes.
- horseradish sauce — a piquant sauce made from horseradish root, vinegar, etc, and traditionally eaten in Britain with roast beef
- horticulturalists — Plural form of horticulturalist.
- housekeeping cart — A housekeeping cart is a large metal basket on wheels which is used by a cleaner in a hotel to move clean bed linen, towels, and cleaning equipment.
- human trafficking — the illegal practice of procuring or trading in human beings for the purpose of prostitution, forced labor, or other forms of exploitation.
- humpbacked bridge — A humpbacked bridge or humpback bridge is a short and very curved bridge with a shape similar to a semi-circle.
- hurricane warning — a storm warning given for winds with speeds exceeding 63 knots (72 mph, 32 m/sec) when the source of the winds is a tropical cyclone.