17-letter words containing h, u, r, l
- fluorescent light — a fluorescent lamp in domestic or commercial use; a fluorescent strip
- four on the floor — a four-speed manual transmission having the gearshift set into the floor.
- four-on-the-floor — a four-speed manual transmission having the gearshift set into the floor.
- 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).
- french revolution — the revolution that began in 1789, overthrew the absolute monarchy of the Bourbons and the system of aristocratic privileges, and ended with Napoleon's overthrow of the Directory and seizure of power in 1799.
- furbish lousewort — any plant belonging to the genus Pedicularis, of the figwort family, as the wood betony, formerly supposed to cause lice in sheep feeding on it: one species, P. furbishiae (Furbish lousewort) of parts of Maine and New Brunswick, Canada, having finely toothed leaves and a cluster of yellow flowers, is endangered and was thought to be extinct until specimens were discovered in 1946 and again in 1976.
- 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.
- 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.
- greenland halibut — a flatfish, Reinhardtius hippoglossoides, similar and related to the halibut
- ground angle shot — a photograph or film shot in which the lens is near the ground, usually pointing up somewhat
- guardhouse lawyer — a person in military service, especially an inmate of a guardhouse or brig, who is or claims to be an authority on military law, regulations, and soldiers' rights.
- guerrilla theater — the presentation of short propaganda plays or skits, usually on sociopolitical themes, as war or repression, often on the streets or in other nontheater locations.
- guinea-hen flower — checkered lily.
- 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
- hammered dulcimer — dulcimer (sense 1)
- haroun-al-raschid — Harun al-Rashid.
- 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.
- henry of portugal — ("the Navigator") 1394–1460, prince of Portugal: sponsor of geographic explorations.
- heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
- hippocampal gyrus — a convolution on the inner surface of the temporal lobe of the cerebrum, bordering the hippocampus.
- hold one's ground — the solid surface of the earth; firm or dry land: to fall to the ground.
- homeland security — national defence
- horticulturalists — Plural form of horticulturalist.
- household cavalry — (in Britain) cavalry units forming part of the ceremonial guard of the monarch.
- household rubbish — the unwanted things and waste material produced in the running of a household, such as used paper, empty tins and bottles, and waste food
- hungarian goulash — goulash (def 1).
- hurler's syndrome — a medical condition characterized by physical deformity and mental deficiency
- huygens principle — the principle that all points on a wave front of light are sources of secondary waves and that surfaces tangential to these waves define the position of the wave front at any point in time.
- hydraulic circuit — a circuit through which water or another liquid, instead of electric current, flows, but which otherwise operates in the same way as an electric circuit
- hydrofluoric acid — a colorless, fuming, corrosive liquid, HF, an aqueous solution of hydrogen fluoride, used chiefly for etching glass.
- hydrofluorocarbon — Any of a class of partly chlorinated and fluorinated hydrocarbons, used as an alternative to chlorofluorocarbons in foam production, refrigeration, and other processes.
- hydrogen fluoride — a colorless corrosive gas, HF, the anhydride of hydrofluoric acid, used chiefly as a catalyst and in the fluorination of hydrocarbons.
- hydrogen sulphide — Chemistry
- hyperintellectual — appealing to or engaging the intellect: intellectual pursuits.
- hypochlorous acid — a weak, unstable acid, HOCl, existing only in solution and in the form of its salts, used as a bleaching agent and disinfectant.
- in double harness — in a harness for two animals pulling the same carriage, plow, etc.
- industrial school — a school for teaching one or more branches of industry; trade or vocational school.
- interdental brush — a small brush that is used to clean between the teeth
- interrupt handler — (software) A routine which is executed when an interrupt occurs. Interrupt handlers typically deal with low-level events in the hardware of a computer system such as a character arriving at a serial port or a tick of a real-time clock. Special care is required when writing an interrupt handler to ensure that either the interrupt which triggered the handler's execution is masked out (inhibitted) until the handler exits, or the handler is re-entrant so that multiple concurrent invocations will not interfere with each other. If interrupts are masked then the handler must execute as quickly as possible so that important events are not missed. This is often arranged by splitting the processing associated with the event into "upper" and "lower" halves. The lower part is the interrupt handler which masks out further interrupts as required, checks that the appropriate event has occurred (this may be necessary if several events share the same interrupt), services the interrupt, e.g. by reading a character from a UART and writing it to a queue, and re-enabling interrupts. The upper half executes as part of a user process. It waits until the interrupt handler has run. Normally the operating system is responsible for reactivating a process which is waiting for some low-level event. It detects this by a shared flag or by inspecting a shared queue or by some other synchronisation mechanism. It is important that the upper and lower halves do not interfere if an interrupt occurs during the execution of upper half code. This is usually ensured by disabling interrupts during critical sections of code such as removing a character from a queue.
- italian greyhound — one of an Italian breed of toy dogs resembling a greyhound.
- john of salisbury — c1115–80, English prelate and scholar.
- julian of norwich — ?1342–?1413, English mystic and anchoress: best known for the Revelations of Divine Love describing her visions
- l'hospital's rule — the theorem that for the quotient of two functions satisfying certain conditions on a given closed interval, each having infinite limit or zero as limit at a given point, the limit of the quotient at the given point is equal to the limit of the quotient of the derivatives of each function.
- langmuir isotherm — A Langmuir isotherm is a classical relationship between the concentrations of a solid and a fluid, used to describe a state of no change in the sorption process.
- laurent's theorem — the theorem that a function that is analytic on an annulus can be represented by a Laurent series on the annulus.
- le morte d'arthur — a compilation and translation of French Arthurian romances by Sir Thomas Malory, printed by Caxton in 1485.
- lighthouse keeper — a person who mans a lighthouse and makes sure that the light is working properly
- lithium carbonate — a colorless crystalline compound, Li 2 CO 3 , slightly soluble in water: used in ceramic and porcelain glazes, pharmaceuticals, and luminescent paints.