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21-letter words containing a, c, h, e

  • de-ontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
  • dead from the neck up — stupid or unintelligent
  • decompression chamber — a chamber in which the pressure of air can be varied slowly for returning people from abnormal pressures to atmospheric pressure without inducing decompression sickness
  • dendrochronologically — By the use of, or with reference to dendrochronology.
  • denominational school — a school associated with a particular religious denomination
  • drop the handkerchief — a children's game in which all the players but one stand in a circle facing inward, while that one player stealthily drops a handkerchief behind a player in the circle who must pursue and attempt to catch the one who dropped the handkerchief before the latter reaches the vacated place.
  • dynamic data exchange — (language)   (DDE, originally Dynamic Data Linking, DDL) A Microsoft Windows 3 hotlink protocol that allows application programs to communicate using a client-server model. Whenever the server (or "publisher") modifies part of a document which is being shared via DDE, one or more clients ("subscribers") are informed and include the modification in the copy of the data on which they are working.
  • electrochromatography — chromatography effected by the influence of an applied electric field
  • electroencephalograms — Plural form of electroencephalogram.
  • electroencephalograph — A machine used for electroencephalography.
  • electromyographically — By means of, or in terms of, electromyography.
  • electronystagmography — A diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus. It can also be used to diagnose the cause of vertigo, dizziness or balance dysfunction by testing the vestibular system.
  • embarras de richesses — a superfluous abundance of options, from which one finds it difficult to select
  • enhanced oil recovery — any of several techniques that make it possible to recover more oil than can be obtained by natural pressure, such as the injection of fluid or gases into an oilfield to force more oil to the surface
  • enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
  • epidemic encephalitis — any type of widespread encephalitis caused by various viruses
  • ethics of the fathers — a treatise of the Mishnah that comprises six chapters and consists chiefly of proverbs, aphorisms, and principles of ethics, law, and religion.
  • extended architecture — (storage)   (XA) A CD-ROM drive specification required by Green Book CD-ROM and White Book CD-ROM formats. Drives labelled "XA ready" may require a firmware upgrade.
  • foreign exchange rate — the rate that specifies how much the currency of a nation is worth in terms of the currency of another nation
  • forensic anthropology — the branch of physical anthropology in which anthropological data, criteria, and techniques are used to determine the sex, age, genetic population, or parentage of skeletal or biological materials in questions of civil or criminal law.
  • forward exchange rate — the exchange rate of a currency to be delivered at a later date
  • french and indian war — the war in America in which France and its Indian allies opposed England 1754–60: ended by Treaty of Paris in 1763.
  • french fried potatoes — a more formal name for chips
  • full faith and credit — the obligation under Article IV of the U.S. Constitution for each state to recognize the public acts, records, and judicial proceedings of every other state.
  • gastrohepatic omentum — lesser omentum.
  • gestalt psychotherapy — a therapy devised in the US in the 1960s in which patients are encouraged to concentrate on the immediate present and to express their true feelings
  • get one's breath back — When you get your breath back after doing something energetic, you start breathing normally again.
  • goldbach's conjecture — the conjecture that every even number greater than two is the sum of two prime numbers
  • gram-molecular weight — gram molecule. Abbreviation: GMW.
  • greenwich observatory — the national astronomical observatory of Great Britain, housed in a castle in E Sussex; formerly located at Greenwich.
  • ground-effect machine — ACV (def 2).
  • guaranteed scheduling — (algorithm)   A scheduling algorithm used in multitasking operating systems that guarantees fairness by monitoring the amount of CPU time spent by each user and allocating resources accordingly.
  • harriet beecher stowe — Harriet (Elizabeth) Beecher, 1811–96, U.S. abolitionist and novelist.
  • have a strong stomach — not to be prone to nausea
  • have it coming to one — to deserve what one is about to suffer
  • have one's cards read — If you have your cards read, you have your fortune told by someone who uses playing cards or tarot cards to tell you about yourself and predict your future.
  • have the inside track — If you say that someone has the inside track, you mean that they have an advantage, for example special knowledge about something.
  • hawaiian honeycreeper — any small to medium-sized finches of the subfamily Drepanidinae, native to the Hawaiian Islands and including many rare and extinct species.
  • hay-pauncefote treaty — an agreement (1901) between the U.S. and Great Britain giving the U.S. the sole right to build a canal across Central America connecting the Atlantic and Pacific.
  • hazard warning device — an appliance fitted to a motor vehicle that operates the hazard lights
  • heliocentric parallax — the apparent displacement of an observed object due to a change in the position of the observer.
  • henry steele commager — Henry Steele, 1902–98, U.S. historian, author, and teacher.
  • hexachlorocyclohexane — (chemistry) A six-chlorine substituted cyclohexane, a polyhalogenated compound used in pesticides.
  • hierarchical database — (database)   A kind of database management system that links records together like a family tree such that each record type has only one owner, e.g. an order is owned by only one customer. Hierarchical structures were widely used in the first mainframe database management systems. However, due to their restrictions, they often cannot be used to relate structures that exist in the real world.
  • highest common factor — greatest common divisor. Abbreviation: H.C.F.
  • hindu-arabic numerals — Arabic numeral.
  • historic places trust — (in New Zealand) the statutory body concerned with the conservation of historic buildings, esp with ancient Māori sites
  • homogeneous catalysis — Homogeneous catalysis is catalysis in which the catalyst takes part in the reaction that it increases.
  • horns and halo effect — a tendency to allow one's judgement of another person, esp in a job interview, to be unduly influenced by an unfavourable (horns) or favourable (halo) first impression based on appearances
  • hubble classification — a method of classifying galaxies depending on whether they are elliptical, spiral, barred spiral, or irregular
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