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21-letter words containing c, h, o, l, a

  • 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.
  • mechanical suspension — the act of suspending.
  • megaspore mother cell — a diploid cell in plants that undergoes meiosis to create four haploid megaspores.
  • 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.
  • mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
  • mucopolysaccharidosis — Any of a group of metabolic disorders caused by the absence or malfunction of lysosomal enzymes needed to break down glycosaminoglycans.
  • 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
  • open graphics library — (graphics, library)   (OpenGL) A multi-platform software interface to graphics hardware, supporting rendering and imaging operations. The OpenGL interface was developed by Silicon Graphics, who license it to other vendors. The OpenGL graphics interface consists of several hundred functions operating on 2D and 3D objects, supporting basic techniques, such as modelling and smooth shading, and advanced techniques, such as texture mapping and motion blur. Many operations require a frame buffer. OpenGL is network-transparent, and a common extension to the X Window System allows an OpenGL client to communicate across a network with a different vendor's OpenGL server. OpenGL is based on Silicon Graphics' proprietary IRIS GL.
  • 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.
  • phenarsazine chloride — adamsite.
  • physical anthropology — the branch of anthropology dealing with the evolutionary changes in human anatomy and physiology, using mensurational and descriptive techniques.
  • pneumoencephalography — encephalography.
  • 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.
  • psychological primary — one of a set of perceived colours (red, yellow, blue, green, black, and white) that can be used to characterize all other perceived colours
  • psychological warfare — the use of propaganda, threats, and other psychological techniques to mislead, intimidate, demoralize, or otherwise influence the thinking or behavior of an opponent.
  • 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.
  • richard coeur de lion — ("Richard the Lion-Hearted"; "Richard Coeur de Lion") 1157–99, king of England 1189–99.
  • 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
  • scholastic philosophy — the system of philosophy, theology, and teaching that dominated medieval western Europe and was based on the writings of the Church Fathers and (from the 12th century) Aristotle, the Greek philosopher (384–322 bc)
  • school of hard knocks — the experience gained from living, especially from disappointment and hard work, regarded as a means of education: The only school he ever attended was the school of hard knocks.
  • 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
  • self-characterization — portrayal; description: the actor's characterization of a politician.
  • silicon tetrachloride — a colorless, fuming liquid, SiCl 4 , used chiefly for making smoke screens and various derivatives of silicon.
  • social anthropologist — an anthropologist who deals with cultural and social phenomena such as kinship systems or beliefs, esp of nonliterate peoples
  • space shuttle orbiter — orbiter (def 1).
  • spherical coordinates — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
  • spicebush swallowtail — a swallowtail butterfly, Papilio troilus, having a dark body with yellow spots on the forewings and greenish hind wings.
  • steer clear of sb/sth — If you steer clear of someone or something, you deliberately avoid them.
  • structural psychology — psychology centering on the analysis of the structure or content of conscious mental states by introspective methods.
  • sunday school teacher — someone who teaches at a Sunday school
  • tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
  • the central provinces — the Canadian provinces of Ontario and Quebec
  • the fall of the cards — the chance distribution of cards in a given deal
  • the household cavalry — a group of British soldiers on horseback who have the job of protecting the king or queen and their family
  • the rock of gibraltar — a limestone promontory at the tip of S Spain
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