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21-letter words containing c, h, l, o, r, t

  • 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.
  • historic places trust — (in New Zealand) the statutory body concerned with the conservation of historic buildings, esp with ancient Māori sites
  • homolosine projection — an equal-area projection of the world, distorting ocean areas in order to minimize the distortion of the continents.
  • 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
  • hydraulic accumulator — an apparatus in which gas, usually air, is used as a cushion or shock absorber in a hydraulic system.
  • hypercholesterolaemia — the condition of having a high concentration of cholesterol in the blood
  • immunoelectrophoresis — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
  • immunoelectrophoretic — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
  • industrial psychology — the application of psychological principles and techniques to business and industrial problems, as in the selection of personnel or development of training programs.
  • insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
  • 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.
  • 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)
  • light armored vehicle — an eight-wheeled armored reconnaissance car with a 25mm cannon, in service with the U.S. Army and Marine Corps in the 1980s.
  • loch ness monster bug — (humour)   (Or "Bugfoot") A bug which cannot be reproduced or has only been sighted by one person. Named after the mythical creature claimed to inhabit Loch Ness in Scotland.
  • main-topsail schooner — a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark.
  • mechanical solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
  • megaspore mother cell — a diploid cell in plants that undergoes meiosis to create four haploid megaspores.
  • metopon hydrochloride — a narcotic drug, C18H21O3N·HCl, derived from morphine, but slightly more potent: used in medicine to relieve pain
  • monochloroacetic acid — chloroacetic acid.
  • mother-of-pearl cloud — nacreous cloud.
  • 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.
  • night-blooming cereus — any of various cacti of the genera Hylocereus, Peniocereus, Nyctocereus, or Selenicereus, having large, usually white flowers that open at night.
  • north atlantic treaty — the treaty (1949) signed by 12 countries, providing for the establishment of NATO.
  • nothing in particular — not anything specific
  • old spanish practices — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
  • ortho-dichlorobenzene — a colorless liquid with a pleasant odor, C 6 H 4 Cl 2 , used as a solvent for a wide range of organic materials.
  • orthogonal projection — a two-dimensional graphic representation of an object in which the projecting lines are at right angles to the plane of the projection. Also called orthogonal projection. Compare isometric (def 5).
  • orthogonal trajectory — the locus of a point whose path cuts each curve of a family of curves at right angles.
  • photoelectric current — photocurrent.
  • physical anthropology — the branch of anthropology dealing with the evolutionary changes in human anatomy and physiology, using mensurational and descriptive techniques.
  • polygenic inheritance — the heredity of complex characters that are determined by a large number of genes, each one usually having a relatively small effect.
  • programmed cell death — a normal, genetically regulated process leading to the death of cells and triggered by the presence or absence of certain stimuli, as DNA damage.
  • rap over the knuckles — to reprimand
  • reciprocal inhibition — the theory that the pairing of an anxiety-provoking stimulus with anxiety-reducing reactions will weaken the association between the stimulus and the anxiety.
  • reconnaissance flight — a flight made by an aircraft in order to obtain military information about a particular place
  • rectangular hyperbola — a hyperbola with perpendicular asymptotes
  • rehabilitation centre — a centre or clinic where people with an alcohol or drug addiction are treated
  • replacement algorithm — The method used to determine which entry in an associative cache to flush to main memory when it is desired to cache a new block of data. The "least recently used" algorithm flushed the block which has not been accessed for the longest time. A random replacement algorithm picks any block with equal probability.
  • return the compliment — repay sb's kindness with a kind act
  • roll with the punches — a thrusting blow, especially with the fist.
  • roman catholic church — the Christian church of which the pope, or bishop of Rome, is the supreme head.
  • schlieren photography — a type of photography which records schlieren
  • school of the soldier — an institution where instruction is given, especially to persons under college age: The children are at school.
  • school superintendent — an official whose job is to oversee school administration within a district
  • scorched earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
  • scorched-earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
  • secure hash algorithm —
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