17-letter words containing h, r, a, d, e
- haemorrhoidectomy — surgical removal of haemorrhoids
- hairy-tailed mole — a blackish North American mole, Parascalops breweri, having a short, hairy tail.
- half-breadth plan — a diagrammatic plan of one half of the hull of a vessel divided lengthwise amidships, showing water lines, stations, diagonals, and bow and buttock lines.
- 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 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
- hardware platform — a group of compatible computers that can run the same software.
- hardware register — (hardware, system administration) (Or "hardware log") A list of all hardware, both internal and external, that is attached to a particular computer.
- have no words for — to be incapable of describing
- head of the river — any of various annual rowing regattas held on particular rivers
- headline-grabbing — A headline-grabbing statement or activity is one that is intended to attract a lot of attention, especially from the media.
- heart of darkness — a short novel (1902) by Joseph Conrad.
- 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.
- heritage industry — an industry that manages the historical sites, buildings, and museums in a particular place, with the aim of encouraging tourism
- hermaphrodite rig — jackass rig.
- heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
- 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
- homeland security — national defence
- horseradish sauce — a piquant sauce made from horseradish root, vinegar, etc, and traditionally eaten in Britain with roast beef
- 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.
- 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).
- 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 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.
- 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.