17-letter words containing a, h, r, d
- hot-and-sour soup — a spicy Chinese soup made with pork, chicken, beans, vinegar, etc., served hot
- hottentot's bread — elephant's-foot.
- household cavalry — (in Britain) cavalry units forming part of the ceremonial guard of the monarch.
- humpbacked bridge — A humpbacked bridge or humpback bridge is a short and very curved bridge with a shape similar to a semi-circle.
- 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.
- 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
- hydrochloric acid — a colorless or faintly yellow, corrosive, fuming liquid, HCl, used chiefly in chemical and industrial processes.
- hydroelectrically — Using hydroelectric power.
- 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.
- hydrogasification — a high-temperature, high-pressure process for producing liquid or gaseous fuels from fine particles of coal and hydrogen gas
- 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).
- 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.
- hypochondriacally — In a hypochondriacal manner.
- 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.
- in broad daylight — openly, in full public view
- in double harness — in a harness for two animals pulling the same carriage, plow, etc.
- in the background — behind the focus of attention
- in/with regard to — You can use with regard to or in regard to to indicate the subject that is being talked or written about.
- indecipherability — Quality of being indecipherable.
- indian paintbrush — any of several semiparasitic plants belonging to the genus Castilleja, of the figwort family, as C. linariaefolia, of the western U.S.: the state flower of Wyoming.
- industrial school — a school for teaching one or more branches of industry; trade or vocational school.
- integrated school — (in New Zealand) a private or church school that has joined the state school system
- interdental brush — a small brush that is used to clean between the teeth
- intermediate host — the host in which a parasite undergoes development but does not reach sexual maturity.
- 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.
- isherwood framing — a system for framing steel vessels in which light, closely spaced, longitudinal frames are connected by heavy, widely spaced transverse frames with deep webs.
- italian greyhound — one of an Italian breed of toy dogs resembling a greyhound.
- jammu and kashmir — official name of Kashmir (def 2).
- ladder-back chair — a chair with a back of two upright posts connected by horizontal slats
- lagrange's method — a procedure for finding maximum and minimum values of a function of several variables when the variables are restricted by additional conditions.
- lanthanide series — the series of rare-earth elements of atomic numbers 57 through 71 (lanthanum through lutetium).
- le morte d'arthur — a compilation and translation of French Arthurian romances by Sir Thomas Malory, printed by Caxton in 1485.
- lead to the altar — to marry
- lee harvey oswald — Lee Harvey, 1939–63, designated by a presidential commission to be the lone assassin of John F. Kennedy.
- life and/or death — If you say that something is a matter of life and death, you are emphasizing that it is extremely important, often because someone may die or suffer great harm if people do not act immediately.
- loggerhead shrike — a common, North American shrike, Lanius ludovicianus, gray above and white below with black wings, tail, and facial mask.
- loggerhead turtle — a sea turtle, Caretta caretta, having a large head: now greatly reduced in number.
- machado y morales — Gerardo [he-rahr-th aw] /hɛˈrɑr ðɔ/ (Show IPA), 1871–1939, president of Cuba 1925–33.
- manufactured home — a prefabricated house, assembled in modular sections.
- martha's vineyard — an island off SE Massachusetts: summer resort. About 100 sq. mi. (259 sq. km).
- mass merchandiser — a retailer or retail store that seeks to sell large quantities of goods quickly through such means as discounting, customer self-service, or unadorned display and packaging, as in a warehouse.
- mechanical digger — a machine used for excavation
- medicochirurgical — pertaining to medicine and surgery.
- meech lake accord — the agreement reached in 1987 at Meech Lake, Quebec, at a Canadian federal-provincial conference that accepted Quebec's conditions for signing the Constitution Act of 1982. The Accord lapsed when the legislatures of two provinces, Newfoundland and Quebec, failed to ratify it by the deadline of June 23, 1990