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18-letter words containing a, d

  • carcinoid syndrome — the systemic effects, including flushing, palpitations, diarrhea, and cramps, resulting from increased blood levels of serotonin secreted by a carcinoid.
  • career development — a progression through a series of jobs, each with more responsibility and a higher income than the last
  • carolina chickadee — a chickadee, Parus carolinensis, of the southeastern U.S., resembling but smaller than the black-capped chickadee.
  • cassini's division — the gap that divides Saturn's rings into two parts, discovered by Giovanni Domenico Cassini (1625–1712) in 1675
  • cat's cry syndrome — a complex of congenital malformations in human infants caused by a chromosomal aberration and in which the infant emits a mewing cry.
  • cathode dark space — Crookes dark space.
  • cationic detergent — a type of detergent in which the active part of the molecule is a positive ion (cation). Cationic detergents are usually quaternary ammonium salts and often also have bactericidal properties
  • ceiling decoration — a plaster moulding for the centre of a ceiling; other decoration, such as coving
  • celestial guidance — the guidance of a spacecraft or missile by reference to the position of one or more celestial bodies
  • celestial latitude — the angular distance of a celestial body north or south from the ecliptic
  • centralized school — a public school formed from the pupils and teachers of a number of discontinued smaller schools, especially in a rural district.
  • centum call second — (unit)   (CCS) A unit used (in North America) to quantify the total traffic running in a network. 1 CCS is 100 call-seconds. That means 1 CCS could be 2 calls of 50 seconds duration or 20 calls of 5 seconds duration.
  • cepheid (variable) — any of a class of pulsating, yellow, supergiant stars whose brightness varies in regular periods: from the period-luminosity relation, the distance of such a star can be determined
  • cerebral dominance — the normal tendency for one half of the brain, usually the left cerebral hemisphere in right-handed people, to exercise more control over certain functions (e.g. handedness and language) than the other
  • cerenkov radiation — radiation emitted when a charged particle travels through a medium at a speed greater than the speed of light through that medium
  • chambered nautilus — nautilus (def 1).
  • chandelier earring — one of a pair of long and ornate earrings that dangle from the earlobes, usually dropping from more than one level.
  • changement de pied — a jump in which the dancer's feet are reversed from the starting position.
  • character disorder — a disorder characterized by socially undesirable behavior, as poor control of impulses or inability to maintain close emotional relationships, and by absence of anxiety or guilt.
  • character encoding — (character)   (Or "character encoding scheme") A mapping between binary data values and character code positions (or "code points"). Early systems stored characters in a variety of ways, e.g. four six-bit characters in a 24-bit word, but around 1960, eight-bit bytes started to become the most common data storage layout, with each character stored in one byte, typically in the ASCII character set. In the case of ASCII, the character encoding is an identity mapping: code position 65 maps to the byte value 65. This is possible because ASCII uses only code positions representable as single bytes, i.e., values between 0 and 255. (US-ASCII only uses values 0 to 127, in fact.) From the late 1990s, there was increased use of larger character sets such as Unicode and many CJK coded character sets. These can represent characters from many languages and more symbols.
  • character-building — improving certain good or useful traits in a person's character, esp self-reliance, endurance, and courage
  • chartered engineer — (in Britain) an engineer who is registered with the Engineering Council as having the scientific and technical knowledge and practical experience to satisfy its professional requirements
  • chartered surveyor — (in Britain) a surveyor who is registered with the Royal Institution of Chartered Surveyors as having the qualifications, training, and experience to satisfy their professional requirements
  • cheval de bataille — a horse used in battle; charger.
  • chickenheartedness — Alternative form of chicken-heartedness.
  • children of israel — the Jews; Hebrews
  • children's crusade — a crusade to recover Jerusalem from the Saracens, undertaken in 1212 by thousands of French and German children who perished, were sold into slavery, or were turned back.
  • chinese water deer — a small Chinese or Korean deer, Hydropotes inermis, having tusks and no antlers: introduced into England and France
  • chocolate-coloured — dark brown
  • 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.
  • christine de pisan — ?1364–?1430, French poet and prose writer, born in Venice. Her works include ballads, rondeaux, lays, and a biography of Charles V of France
  • 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.
  • circular dichroism — selective absorption of one of the two possible circular polarizations of light.
  • circulating medium — currency serving as a medium of exchange
  • citta del vaticano — Vatican City
  • classified section — the part of a publication that contains classified advertising
  • claw-and-ball foot — ball-and-claw foot.
  • 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
  • climbing hydrangea — a woody vine, Hydrangea anomala, of eastern Asia, having shiny, egg-shaped leaves and flat-topped white flower clusters, and climbing by aerial rootlets.
  • closed corporation — a corporation the stock of which is owned by a small number of persons and is rarely traded on the open market
  • closed scholarship — a scholarship for which only certain people, such as those from a particular school or with a particular surname, are eligible
  • 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.
  • coast-guard cutter — a cutter used by the U.S. Coast Guard.
  • coastguard station — the headquarters or local offices of a coastguard
  • cobalt violet deep — a medium to strong purple color.
  • collision diameter — the distance between the centers of two colliding molecules when at their closest point of approach.
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