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20-letter words containing le

  • clean-bill-of-health — a certificate, carried by a ship, attesting to the presence or absence of infectious diseases among the ship's crew and at the port from which it has come.
  • cleansing department — the department of a local authority that collects refuse
  • clear air turbulence — turbulent air, not associated with a storm, that affects the flight of aircraft
  • clear-air turbulence — atmospheric turbulence, sometimes severe, occurring in air devoid of clouds or other visible indicators that turbulence might be present. Abbreviation: CAT.
  • collective agreement — a negotiated agreement, which is not enforceable at law, between an employer and employees' representatives, covering rates of pay or terms and conditions of employment, or both
  • collective ownership — ownership by a group for the benefit of members of that group
  • college of cardinals — the collective body of cardinals having the function of electing and advising the pope
  • college of education — a professional training college for teachers
  • collegiate institute — (in certain provinces) a large secondary school with an academic, rather than vocational, emphasis
  • colour look-up table — colour palette
  • complementary angles — either of two angles that added together produce an angle of 90°.
  • complementary colors — any of two colors of the spectrum that, combined in the right intensities, produce white or nearly white light
  • complementary colour — one of any pair of colours, such as yellow and blue, that give white or grey when mixed in the correct proportions
  • complementary strand — either of the two chains that make up a double helix of DNA, with corresponding positions on the two chains being composed of a pair of complementary bases.
  • complete blood count — a diagnostic test that determines the exact numbers of each type of blood cell in a fixed quantity of blood. Abbreviation: CBC.
  • complete unification — (programming)   W.P. Weijland's name for unification without occur check.
  • complex carbohydrate — a carbohydrate, as sucrose or starch, that consists of two or more monosaccharide units.
  • condensation nucleus — nucleus (def 5).
  • consumer electronics — computers and other electronic devices designed for private individuals as opposed to businesses
  • controlled explosion — the deliberate detonation of an explosive device under strictly controlled circumstances
  • controlled substance — a drug regulated by the Federal Controlled Substances Acts, including opiates, depressants, stimulants, and hallucinogens
  • convertible currency — A convertible currency is a currency that can be bought and sold on the open market for other currencies.
  • coordination complex — one of a number of complex compounds in which an atom or group of atoms is bound to the central atom by a shared pair of electrons supplied by the coordinated group and not by the central atom
  • corresponding angles — a pair of nonadjacent angles, one interior and one exterior, on the same side of a transversal: these paired angles are equal if the lines cut by the transversal are parallel
  • data dictionary file — (database)   (DDF) A set of files describing the structure of a database file. DDFs define database tables and include information about file locations, field layouts and indexes. DDFs are the standard method for defining field and index characteristics for Btrieve files.
  • decahydronaphthalene — a colorless, aromatic liquid, C 10 H 18 , insoluble in water and soluble in alcohol and ether: used as a solvent for oils, fats, etc., in cleaning fluids, lubricants, etc.
  • deoxyribonucleotides — Plural form of deoxyribonucleotide.
  • determinate cleavage — cell division in a fertilized or unfertilized egg resulting in daughter cells that are no longer able to produce a complete embryo by themselves
  • dialectical theology — a form of neoorthodox theology emphasizing the infinite tensions, paradoxes, and basic ambiguities inherent in Christian existence, and holding, against rationalism, that God is unknowable to humans except through divine grace and revelation.
  • dickless workstation — (abuse)   Extremely pejorative hackerism for "diskless workstation".
  • digital lempel ziv 1 — (algorithm)   (DLZ1) A Lempel-Ziv compression algorithm which maps variable length input strings to variable length output symbols. During compression, the algorithm builds a dictionary of strings which is accessed by means of a hash table. Compression occurs when input data matches a string in the table and is replaced with the output symbol. DLZ1 is used on Digital Linear Tape.
  • diphenylene diketone — a compound used in dye manufacture
  • diskless workstation — (computer, networking)   A personal computer or workstation which has neither a hard disk nor floppy disk drive and which performs all file access via a local area network connection to a file server. The lowest level bootstrap code is stored in non-volatile storage. This uses a simple protocol such as BOOTP to request and download more sophisticated boot code and eventually, the operating system. The archtypal product was the 3Station developed by Bob Metcalfe at 3Com. Another example was the Sun 3/50. Diskless workstations are ideal when many users are running the same application. They are small, quiet, more reliable than products with disks, and help prevent both the theft of data and the introduction of viruses since the software and data available on them is controlled by the network administrator or system administrator. They do however rely on a server which becomes a disadvantage if it is heavily loaded or down. See also breath-of-life packet.
  • double decomposition — a reaction whose result is the interchange of two parts of two substances to form two new substances, as AgNO 3 + NaCl → AgCl + NaNO 3 .
  • double fertilization — the fertilization process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
  • double-aspect theory — a monistic theory that holds that mind and body are not distinct substances but merely different aspects of a single substance
  • double-trailer truck — tandem trailer (def 1).
  • drum and bugle corps — a marching band of drum players and buglers.
  • duck-billed dinosaur — hadrosaur.
  • duck-billed platypus — platypus.
  • ecclesiastical court — a church court in ecclesiastical matters, presided over by members of the clergy and usually having no compulsory jurisdiction.
  • effective computable — (theory)   A term describing a function for which there is an effective algorithm that correctly calculates the function. The algorithm must consist of a finite sequence of instructions.
  • eight queens problem — eight queens puzzle
  • eleanor of aquitaine — ?1122–1204, queen of France (1137–52) by her marriage to Louis VII and queen of England (1154–89) by her marriage to Henry II; mother of the English kings Richard I and John
  • electoral boundaries — the way that a country or area is divided for the purposes of voting in an election
  • electrocardiographic — Of or pertaining to an electrocardiogram (ECG) or electrocardiograph.
  • electrode efficiency — the ratio of the amount of metal deposited in an electrolytic cell to that theoretically deposited according to Faraday's laws
  • electroencephalogram — A test or record of brain activity produced by electroencephalography.
  • electrohydrodynamics — (physics) the study of the dynamics of electrically conducting fluid.
  • electromagnetic pump — a device for pumping liquid metals by placing a pipe between the poles of an electromagnet and passing a current through the liquid metal
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