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18-letter words containing n, o, r

  • chinese watermelon — a tropical Asian vine, Benincasa hispida, of the gourd family, having a brown, hairy stem, large, solitary, yellow flowers, and white, melonlike fruit.
  • chloroacetophenone — a white, crystalline, water-insoluble, poisonous solid, C 8 H 7 ClO, used in solution as a tear gas. Abbreviation: CN.
  • chlorobromomethane — a clear, colorless, volatile, nonflammable liquid, CH 2 ClBr, used chiefly as an extinguishing agent in fire extinguishers and as a solvent in organic synthesis.
  • chlorofluorocarbon — Chlorofluorocarbons are the same as CFCs.
  • chlorohydroquinone — a white to light-tan, crystalline, water-soluble solid, C 6 H 3 Cl(OH) 2 , used chiefly in organic synthesis and as a developer in photography.
  • cholangiocarcinoma — (pathology) Cancer of the bile duct.
  • chrétien de troyes — 12th century, French poet, who wrote the five Arthurian romances Erec; Cligès; Lancelot, le chevalier de la charette; Yvain, le chevalier au lion; and Perceval, le conte del Graal (?1155–?1190), the first courtly romances
  • christian brothers — a religious congregation of laymen founded in France in 1684 for the education of the poor
  • christian democrat — a member or supporter of a Christian Democratic party
  • christian endeavor — an organization of young people of various evangelical Protestant churches, formed in 1881 to promote Christian principles and service.
  • christian reformed — of or relating to a Protestant denomination (Christian Reformed Church) organized in the U.S. in 1857 by groups that had seceded from the Dutch Reformed Church.
  • christmas shopping — shopping especially for Christmas presents, but also for Christmas food and drink, and all the other things required over the Christmas period.
  • christmas stocking — A Christmas stocking is a long sock which children hang up on Christmas Eve. During the night, parents fill the stocking with small presents.
  • chromatic printing — printing from blocks or types inked with various colours
  • chromatic semitone — the pitch difference between one note and its sharpened or flattened equivalent
  • chronic alcoholism — long-term alcohol addiction
  • chronic bronchitis — persistent respiratory disease
  • chronostratigraphy — The branch of geology concerned with establishing the absolute ages of strata.
  • church of scotland — the established church in Scotland, Calvinist in doctrine and Presbyterian in constitution
  • cigar-store indian — a wooden statue of an American Indian, traditionally displayed at the entrance of cigar stores.
  • circumnavigational — Relating to circumnavigation.
  • citizen journalism — the involvement of non-professionals in reporting news, esp in blogs and other websites
  • clay-colored robin — any of several small Old World birds having a red or reddish breast, especially Erithacus rubecula, of Europe.
  • cleopatra's needle — either of two Egyptian obelisks, originally set up at Heliopolis about 1500 bc: one was moved to the Thames Embankment, London, in 1878, the other to Central Park, New York, in 1880
  • clew down (or up) — to lower (or raise) a sail by means of clew lines
  • clobbering machine — pressure to conform with accepted standards
  • closed corporation — a corporation the stock of which is owned by a small number of persons and is rarely traded on the open market
  • closure conversion — (theory)   The transformation of continuation passing style code so that the only free variables of functions are names of other functions. See also Lambda lifting.
  • coast rhododendron — a rhododendron, Rhododendron macrophyllum, of western North America, having large clusters of rose-purple flowers spotted with brown: the state flower of Washington.
  • coastguard station — the headquarters or local offices of a coastguard
  • coitus interruptus — the deliberate withdrawal of the penis from the vagina before ejaculation
  • collection charges — the charges levied to cover expenses for the collection of debt
  • collision coverage — Collision coverage is insurance cover for vehicle accidents.
  • collision diameter — the distance between the centers of two colliding molecules when at their closest point of approach.
  • colonic irrigation — Colonic irrigation is a medical procedure in which a person's colon is washed by injecting water or other fluids into it.
  • color transparency — a positive color image photographically produced on transparent film or glass and viewed by transmitted light, usually by projection.
  • colour commentator — a sports celebrity who works as part of a commentary team
  • combination square — an adjustable device for carpenters, used as a try square, miter square, level, etc.
  • combined operation — a military operation carried out jointly by allied forces
  • combustion chamber — an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn
  • combustion furnace — a furnace used in the laboratory to carry out elemental analysis of organic compounds
  • come the raw prawn — to attempt deception
  • commander in chief — Also, Commander in Chief. the supreme commander of the armed forces of a nation or, sometimes, of several allied nations: The president is the Commander in Chief of the U.S. Army, Navy, and Air Force.
  • commander-in-chief — A commander-in-chief is a senior officer who is in charge of all the forces in a particular area.
  • commanding officer — A commanding officer is an officer who is in charge of a military unit.
  • commando operation — a major operation for treatment of cancer of the head and neck, involving removal of many facial structures and subsequent surgical reconstruction
  • common data format — (library)   (CDF) A library and toolkit based on a self-describing data format for scalar and multidimensional data. CDF aims to be platform- and discipline-independent. A scientific data management package (CDF Library) allows developers to manage data and metadata through APIs. CDF has built-in support for data compression (gZip, RLE, Huffman) and files larger than two gigabytes. There are interfaces for C, FORTRAN, Java, Perl, C#, Visual Basic, IDL and MATLAB.
  • common denominator — In mathematics, a common denominator is a number which can be divided exactly by all the denominators in a group of fractions.
  • common user access — (programming)   (CUA) The user interface standard of SAA.
  • common wintergreen — a plant (Pyrola minor) of temperate and arctic regions, having rounded leaves and small pink globose flowers: family Pyrolaceae
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