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17-letter words containing l, u, d, h

  • hammered dulcimer — dulcimer (sense 1)
  • haroun-al-raschid — Harun al-Rashid.
  • heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
  • hillel foundation — a national organization, founded in 1924 by the B'nai B'rith, that institutes and administers programs designed to enrich the religious, cultural, and social life of Jewish college students.
  • hold one's end up — the last part or extremity, lengthwise, of anything that is longer than it is wide or broad: the end of a street; the end of a rope.
  • hold one's ground — the solid surface of the earth; firm or dry land: to fall to the ground.
  • hold one's tongue — Anatomy. the usually movable organ in the floor of the mouth in humans and most vertebrates, functioning in eating, in tasting, and, in humans, in speaking.
  • hollandaise sauce — a sauce of egg yolks, butter, lemon juice, and seasonings.
  • homeland security — national defence
  • household ammonia — diluted ammonia, often having a small quantity of detergent, used in the home for cleaning.
  • household cavalry — (in Britain) cavalry units forming part of the ceremonial guard of the monarch.
  • household effects — domestic belongings
  • 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
  • hurler's syndrome — a medical condition characterized by physical deformity and mental deficiency
  • 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
  • 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.
  • indistinguishable — not distinguishable.
  • indistinguishably — In an indistinguishable manner; so that separate components or differences cannot be discerned.
  • 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.
  • island of the sun — Sicily: the island where Helius kept his oxen.
  • italian greyhound — one of an Italian breed of toy dogs resembling a greyhound.
  • joachim du bellay — Joachim [French zhaw-a-keem] /French ʒɔ aˈkim/ (Show IPA), Bellay, Joachim du.
  • lady of the house — the female head of a household (usually preceded by the).
  • le morte d'arthur — a compilation and translation of French Arthurian romances by Sir Thomas Malory, printed by Caxton in 1485.
  • liquidity cushion — a reserve fund of assets held by a company or person
  • lithium hydroxide — a white, crystalline, water-soluble compound, LiOH, used to absorb carbon dioxide, especially in spacesuits.
  • loggerhead turtle — a sea turtle, Caretta caretta, having a large head: now greatly reduced in number.
  • make the dust fly — earth or other matter in fine, dry particles.
  • medicochirurgical — pertaining to medicine and surgery.
  • medium close shot — a shot taken fairly close to the subject, but not as close as a close-up
  • mercuric chloride — a white, crystalline, water-soluble, strongly acrid, highly poisonous solid, HgCl 2 , prepared by sublimation of chlorine with mercury, and used chiefly as an antiseptic.
  • mercuric sulphide — a compound of mercury, usually existing as a black solid (metacinnabarite) or a red solid (cinnabar or vermilion), which is used as a pigment. Formula: HgS
  • methylidyne group — the trivalent group ≡CH.
  • modulo arithmetic — modular arithmetic
  • muscle dysmorphia — a mental disorder primarily affecting males, characterized by obsessions about a perceived lack of muscularity, leading to compulsive exercising, use of anabolic steroids, etc. Compare body dysmorphic disorder.
  • narrow-shouldered — having shoulders which do not extend very far from the neck; not broad-shouldered
  • not the full quid — mentally subnormal
  • nuclear threshold — the point in war at which a combatant brings nuclear weapons into use
  • old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
  • out of this world — the earth or globe, considered as a planet.
  • phumiphon aduldet — (Phumiphon Aduldet; Bhumibol Adulyadej) born 1927, king of Thailand since 1946.
  • physical pendulum — any apparatus consisting of a body of possibly irregular shape allowed to rotate freely about a horizontal axis on which it is pivoted (distinguished from simple pendulum).
  • plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
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