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

  • gastrohepatic omentum — lesser omentum.
  • 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
  • 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.
  • 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.
  • highest common factor — greatest common divisor. Abbreviation: H.C.F.
  • hindu-arabic numerals — Arabic numeral.
  • 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
  • ilya ilyich mechnikov — Élie [French ey-lee] /French eɪˈli/ (Show IPA), (Ilya Ilyich Mechnikov) 1845–1916, Russian zoologist and bacteriologist in France: Nobel Prize in medicine 1908.
  • immunohistochemically — By means of or in regard to immunohistochemistry.
  • in the first instance — You say in the first instance to mention something that is the first step in a series of actions.
  • indicated horse-power — the horsepower of a reciprocating engine as shown by an indicator record. Abbreviation: ihp, IHP.
  • insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
  • irish republican army — an underground Irish nationalist organization founded to work for Irish independence from Great Britain: declared illegal by the Irish government in 1936, but continues activity aimed at the unification of the Republic of Ireland and Northern Ireland. Abbreviation: IRA, I.R.A.
  • johann sebastian bach — Johann Sebastian [yoh-hahn si-bas-chuh n;; German yoh-hahn zey-bahs-tee-ahn] /ˈyoʊ hɑn sɪˈbæs tʃən;; German ˈyoʊ hɑn zeɪˈbɑs tiˌɑn/ (Show IPA), 1685–1750, German organist and composer.
  • joint chiefs of staff — the chiefs of staff of the army and the air force, the commandant of the marine corps, and the chief of naval operations, together with a chairman selected from one of the branches of the armed forces, serving as the principal military advisory body to the president, the National Security Council, and the secretary of defense.
  • laboratory technician — sb who assists in a laboratory
  • lactate dehydrogenase — an enzyme that catalyzes the interconversion of pyruvate and lactate, an important step in carbohydrate metabolism: elevated serum levels indicate injury to kidney, skeletal muscle, or heart muscle. Abbreviation: LDH.
  • large hadron collider — a particle accelerator at the European Laboratory for Particle Physics near Geneva, containing a circular underground tunnel 27km (16.8 miles) in circumference, around which two streams of hadrons are sent in opposite directions before being brought together in a high-energy collision
  • launch control center — any of a number of underground U.S. command facilities prepared to launch land-based missiles in event of war.
  • law of thermodynamics — any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process is possible in which heat is absorbed from a reservoir at a single temperature and converted completely into mechanical work (second law of thermodynamics) and the principle that it is impossible to reduce the temperature of a system to absolute zero in a finite number of operations (third law of thermodynamics)
  • leave sb in the lurch — If someone leaves you in the lurch, they go away or stop helping you at a very difficult time.
  • like a shag on a rock — abandoned and alone
  • macintosh file system — (file system)   A file on the Macintosh consists of two parts, called forks. The "data fork" contains the data which would normally be stored in the file on other operating systems. The "resource fork" contains a collection of arbitrary attribute/value pairs, including program segments, icon bitmaps, and parametric values. Yet more information regarding Macintosh files is stored by the Finder in a hidden file, called the "Desktop Database". Because of the complications in storing different parts of a Macintosh file in non-Macintosh file systems that only handle consecutive data in one part, it is common to only send the Data fork or to convert the Macintosh file into some other format before transferring it.
  • main-topsail schooner — a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark.
  • make one's peace with — the normal, nonwarring condition of a nation, group of nations, or the world.
  • mechanical instrument — a musical instrument, such as a barrel organ or music box, that plays a preselected piece of music by mechanical means
  • mechanical metallurgy — the branch of metallurgy dealing with the response of metals to applied forces.
  • mechanical solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
  • mechanical suspension — the act of suspending.
  • mechanical weathering — any of the various weathering processes that cause physical disintegration of exposed rock without any change in the chemical composition of the rock: Collision between rock surfaces can cause mechanical weathering.
  • modern apprenticeship — an arrangement that allows a school leaver to gain vocational qualifications while being trained in a job
  • monochloroacetic acid — chloroacetic acid.
  • motivational research — the application of the knowledge and techniques of the social sciences, especially psychology and sociology, to understanding consumer attitudes and behavior: used as a guide in advertising and marketing.
  • multichannel analyser — an electronic instrument, such as a pulse height analyser, that splits an input waveform into a large number of channels in accordance with a particular parameter of the input
  • munchausen's syndrome — a mental disorder in which a patient feigns illness to obtain hospital treatment
  • near-death experience — A near-death experience is a strange experience that some people who have nearly died say they had when they were unconscious.
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