17-letter words containing r, h, a, e
- higher arithmetic — arithmetic (def 2).
- highways engineer — a civil engineer trained and specialized in the planning, construction, maintenance, etc of highways and roads
- 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.
- hit over the head — to strike on the head
- hoare powerdomain — powerdomain
- hold one's breath — If you say that someone is holding their breath, you mean that they are waiting anxiously or excitedly for something to happen.
- holding operation — a plan or procedure devised to prolong the existing situation
- hole in the heart — a defect of the heart in which there is an abnormal opening in any of the walls dividing the four heart chambers
- hollerith, herman — Herman Hollerith
- holy roman empire — a Germanic empire located chiefly in central Europe that began with the coronation of Charlemagne as Roman emperor in a.d. 800 (or, according to some historians, with the coronation of Otto the Great, king of Germany, in a.d. 962) and ended with the renunciation of the Roman imperial title by Francis II in 1806, and was regarded theoretically as the continuation of the Western Empire and as the temporal form of a universal dominion whose spiritual head was the pope.
- homeland security — national defence
- honorable mention — a citation conferred on a contestant, exhibit, etc., having exceptional merit though not winning a top honor or prize.
- horatio kitchener — Horatio Herbert (1st Earl Kitchener of Khartoum and of Broome) 1850–1916, English field marshal and statesman.
- hormone treatment — any of several medical treatments using hormones
- horseradish sauce — a piquant sauce made from horseradish root, vinegar, etc, and traditionally eaten in Britain with roast beef
- hospital gangrene — Pathology. a contagious, often fatal gangrene, especially involving amputation stumps and war wounds, occurring usually in crowded, ill-kept hospitals, and caused by putrefactive bacteria.
- hottentot's bread — elephant's-foot.
- household cavalry — (in Britain) cavalry units forming part of the ceremonial guard of the monarch.
- 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.
- how's-your-father — sexual intercourse
- human engineering — an applied science that coordinates the design of devices, systems, and physical working conditions with the capacities and requirements of the worker.
- 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.
- hyaline cartilage — the typical, translucent form of cartilage, containing little fibrous tissue.
- hybrid fiber coax — (networking) (HFC) A kind of physical connection used in networks for audio, video, and data. DVB (Digital Video Broadcast) is used in Europe and DOCSIS is used in N America.
- hydroelectrically — Using hydroelectric power.
- hydrotherapeutics — hydrotherapy.
- hydrotherapy pool — a pool of water used for hydrotherapy
- hydrothermal vent — an opening on the floor of the sea from which hot, mineral-rich solutions issue. Compare vent1 (def 2).
- hydroxytryptamine — (organic compound) Any hydroxy derivative of tryptamine, but especially 5-hydroxytryptamine (serotonin).
- hyper-peristalsis — the progressive wave of contraction and relaxation of a tubular muscular system, especially the alimentary canal, by which the contents are forced through the system.
- hyperalimentation — overfeeding.
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
- hyperbolic spiral — rθ = a, (where a is a constant)
- hyperchlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
- hyperexcitability — an excessive reaction to stimuli.
- hyperinflationary — (economics) Having very high levels of inflation.
- hyperintellectual — appealing to or engaging the intellect: intellectual pursuits.
- hyperirritability — extreme irritability.
- hyperpigmentation — coloration, especially of the skin.
- hyperpolarisation — Alternative spelling of hyperpolarization.
- hyperpolarization — The act or process of hyperpolarizing.
- hypocholesteremia — an abnormally low amount of cholesterol in the blood.
- hypoglossal nerve — either one of the twelfth pair of cranial nerves, consisting of motor fibers that innervate the muscles of the tongue.
- hypophrygian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from B to B, with the final on E.
- icosidodecahedron — A semiregular polyhedron with twelve faces that are regular pentagons and twenty that are equilateral triangles.
- icositetrahedrons — Plural form of icositetrahedron.
- ignoratio elenchi — the fallacy of offering proof irrelevant to the proposition in question.
- immunotherapeutic — (immunology, medicine) Of a pharmaceutical, acting on the immune system to treat disease; used in immunotherapy.