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25-letter words containing h, e, d, r

  • group-sweeping scheduling — (storage, algorithm)   (GSS) A disk scheduling strategy in which requests are served in cycles, in a round-robin manner. To reduce disk arm movements ("seeking"), the set of streams is divided into groups that are served in fixed order. Streams within a group are served according to "SCAN". If all clients are assigned to one group, GSS reduces to SCAN, and if all clients are assigned to separate groups, GSS effectively becomes round-robin scheduling. The service order within one group is not fixed, and a stream may in fact be first in one cycle while last in the next. This variation has to be masked by extra buffering but whereas SCAN requires buffer space for all streams, GSS can reuse the buffer for each group and effect a trade-off between seek optimisation and buffer requirements.
  • hardening of the arteries — medical condition: arteriosclerosis
  • harris semiconductor ltd. — (company)   Address: Riverside Way, Camberley, Surrey, CU15 3YQ, UK. Telephone: +44 (1276) 686 886. Fax: +44 (1276) 682 323.
  • have an ear to the ground — to give careful attention to the trends of public opinion
  • have it on good authority — If you say you have it on good authority that something is true, you mean that you believe it is true because you trust the person who told you about it.
  • here today, gone tomorrow — short-lived; transitory
  • high voltage differential — (hardware)   (HVD) Differential SCSI scheme that has been in use for years. The terminators run on 5 Volts DC. See also LVD.
  • hoist by one's own petard — an explosive device formerly used in warfare to blow in a door or gate, form a breach in a wall, etc.
  • hydrogen sulfide scrubber — A hydrogen sulfide scrubber is a device for the chemical removal of hydrogen sulfide.
  • indirect characterization — the process by which the personality of a fictitious character is revealed through the character's speech, actions, appearance, etc.
  • industrial rehabilitation — the treatment of people who have acquired a disability or disease during the course of their work, with the aim of allowing them to return to work or to a new job
  • keep an ear to the ground — If you keep or have your ear to the ground, you make sure that you find out about the things that people are doing or saying.
  • lead down the garden path — a plot of ground, usually near a house, where flowers, shrubs, vegetables, fruits, or herbs are cultivated.
  • local education authority — a body that is responsible for education in a particular area
  • magnetic character reader — a device that automatically scans and interprets characters printed with magnetic ink. It operates by the process of magnetic character recognition
  • magnetohydromagnetic wave — Physics. Alfvén wave.
  • medical officer of health — a person appointed by a local or national authority to be in charge of its health policy
  • methylrosaniline chloride — gentian violet.
  • murders in the rue morgue — a short story (1841) by Edgar Allan Poe.
  • never do things by halves — If you say that someone never does things by halves, you mean that they always do things very thoroughly.
  • no disrespect (to sb/sth) — You can say 'no disrespect to someone or something' when you are just about to criticize them, in order to indicate that you are not hostile towards them or admire them for other things.
  • non-algorithmic procedure — heuristic
  • not for the faint-hearted — If you say that something is not for the faint-hearted, you mean that it is an extreme or very unusual example of its kind, and is not suitable for people who like only safe and familiar things.
  • nuffield teaching project — (in Britain) a complete school programme in mathematics, science, languages, etc, with suggested complementary theory and practical work
  • on the horns of a dilemma — one of the bony, permanent, hollow paired growths, often curved and pointed, that project from the upper part of the head of certain ungulate mammals, as cattle, sheep, goats, or antelopes.
  • on the understanding that — with the condition that; providing
  • orpheus in the underworld — a classical operetta; the French name is Orphée aux enfers
  • over-the-counter medicine — An over-the-counter medicine is a medicine that may be sold without a doctor's prescription.
  • oxidative phosphorylation — the aerobic synthesis, coupled to electron transport, of ATP from phosphate and ADP.
  • poacher turned gamekeeper — someone whose occupation or behaviour is the opposite of what it previously was, such as a burglar who now advises on home security
  • preferred ordinary shares — shares issued by a company that rank between preference shares and ordinary shares in the payment of dividends
  • ram down someone's throat — the passage from the mouth to the stomach or to the lungs, including the pharynx, esophagus, larynx, and trachea.
  • ram's-head lady's-slipper — a rare, slender-stemmed orchid, Cypripedium arietinum, of northeastern North America, that has crimson-streaked, whitish-lipped flowers with purple sepals and grows in moist soil.
  • rate monotonic scheduling — (algorithm)   A means of scheduling the time allocated to periodic hard-deadline real-time users of a resource. The users are assigned priorities such that a shorter fixed period between deadlines is associated with a higher priority. Rate monotonic scheduling provides a low-overhead, reasonably resource-efficient means of guaranteeing that all users will meet their deadlines provided that certain analytical equations are satisfied during the system design. It avoids the design complexity of time-line scheduling and the overhead of dynamic approaches such as earliest-deadline scheduling.
  • read someone the riot act — If someone in authority reads you the riot act, they tell you that you will be punished unless you start behaving properly.
  • rehabilitation department — a government department set up after World War II to assist ex-servicemen
  • ruby-throated hummingbird — a small hummingbird, Archilochus colubris, the only hummingbird of eastern North America, having metallic-green upper plumage and a bright red throat in the male.
  • stand in a person's light — to stand so as to obscure a person's vision
  • take sth under advisement — If someone in authority takes a matter under advisement, they decide that the matter needs to be considered more carefully, often by experts.
  • take up the cudgels (for) — to come to the defense (of)
  • tess of the d'urbervilles — a novel (1891) by Thomas Hardy.
  • tetragonal trisoctahedron — Geometry. a trisoctahedron the faces of which are quadrilaterals; trapezohedron.
  • the department of defense — the United States federal department concerned with national security
  • the empire state building — a very high skyscraper in New York City
  • the industrial revolution — the transformation in the 18th and 19th centuries of first Britain and then other W European countries and the US into industrial nations
  • the length and breadth of — If you say that someone does something or something happens throughout or across the length and breadth of a place, you are emphasizing that it happens everywhere in that place.
  • the sands are running out — there is not much time left before death or the end
  • the third epistle of john — an epistle attributed to the apostle John and addressed to a man called Gaius, who is praised in the letter
  • thermodynamic equilibrium — the condition of an isolated system in which the quantities that specify its properties, such as pressure, temperature, etc, all remain unchanged
  • thermodynamic temperature — temperature defined in terms of the laws of thermodynamics and not in terms of the properties of any real material. It is usually expressed on the Kelvin scale
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