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19-letter words containing a, d, i, o, c

  • conventional wisdom — The conventional wisdom about something is the generally accepted view of it.
  • coordinate geometry — analytic geometry.
  • coordination number — the number of coordinated species surrounding the central atom in a complex or crystal
  • cordillera oriental — the eastern ranges of the Andes, in Bolivia, Colombia, and Peru.
  • counter-advertising — the act or practice of calling public attention to one's product, service, need, etc., especially by paid announcements in newspapers and magazines, over radio or television, on billboards, etc.: to get more customers by advertising.
  • countervailing duty — an extra import duty imposed by a country on certain imports, esp to prevent dumping or to counteract subsidies in the exporting country
  • cowboys and indians — a children's game in which players imitate the supposed behavior of cowboys and Indians in conflict, as in shooting, chasing, and capturing.
  • cracked compression — Cracked compression is a separation process for separating hydrocarbons further, with an increase in the pressure of the cracked gas.
  • cracked gas cooling — Cracked gas cooling is a process in which the temperature of a cracked gas is reduced in order to separate it into different product streams.
  • criminal wrongdoing — the act of causing harm to a person or damage to his or her interests
  • cuboidal epithelium — epithelium consisting of one or more layers of cells of cuboid or polyhedral shape.
  • cudgel one's brains — to think hard about a problem
  • cultivated mushroom — an edible mushroom (Agaricus bisporus) with a pale cap and stalk: the most common food mushroom
  • customs declaration — a form declaring the nature and value of goods, etc, for customs purposes
  • cyclohexadienedione — (organic chemistry) benzoquinone.
  • cyril of alexandria — Saint. ?375–444 ad, Christian theologian and patriarch of Alexandria. Feast day: June 27 or June 9
  • dancing-lady orchid — any of numerous epiphytic orchids of the genus Oncidium, often grown as houseplants.
  • data encryption key — (DEK) Used for the encryption of message text and for the computation of message integrity checks (signatures). See cryptography.
  • data protection act — (legal)   (DPA) A UK law guaranteeing rights to individuals in relation to personal data that others hold on them. For example, under the DPA, you have the right to see what data a company holds on you.
  • de-compartmentalize — to divide into categories or compartments.
  • deaf without speech — (usually of a prelingually deaf person) able to utter sounds but not speak
  • deathbed confession — a confession that somebody makes just before he or she dies, usually relating to some long concealed crime or secret
  • declaration of love — a statement made by one person to another in which they say they are in love with the other person
  • decontextualization — to remove (a linguistic element, an action, etc.) from a context: decontextualized works of art displayed in museums.
  • deflate compression — deflate
  • dendrochronological — Pertaining to dendrochronology.
  • dental receptionist — a receptionist working in a dental surgery
  • depletion allowance — a tax allowance granted in certain industries, such as the oil and gas industries, to compensate for the depletion of the oil, gas, etc owned by the company
  • detective constable — a police officer who investigates crime and who is of the lowest rank
  • devil's coach-horse — a large black rove beetle, Ocypus olens, with large jaws and ferocious habits
  • devils-on-horseback — a savoury of prunes wrapped in bacon slices and served on toast
  • diamond ring effect — a phenomenon, sometimes observed immediately before and after a total eclipse of the sun, in which one of Baily's beads is much brighter than the others, resembling a diamond ring around the moon.
  • dictionary of names — a dictionary of given names that indicates whether a name is usually male, female, or unisex and often includes origins as well as meanings; for example, as by indicating that Evangeline, meaning “good news,” comes from Greek. Used primarily as an aid in selecting a name for a baby, dictionaries of names may also include lists of famous people who have shared a name and information about its current popularity ranking.
  • dielectric constant — Electricity. the ratio of the flux density produced by an electric field in a given dielectric to the flux density produced by that field in a vacuum.
  • difference equation — (mathematics)   A relation between consecutive elements of a sequence. The first difference is D u(n) = u(n+1) - u(n) where u(n) is the nth element of sequence u. The second difference is u(n+2) + a u(n+1) + b u(n) = 0 can be converted to a difference equation (in this case, a second order linear difference equation): D2 u(n) + p D u(n) + q u(n) = 0 and vice versa. a, b, p, q are constants.
  • diffraction grating — a band of equidistant, parallel lines, usually more than 5000 per inch (2000 per centimeter), ruled on a glass or polished metal surface for diffracting light to produce optical spectra.
  • diffraction pattern — the phenomenon exhibited by wave fronts that, passing the edge of an opaque body, are modulated, thereby causing a redistribution of energy within the front: it is detectable in light waves by the presence of a pattern of closely spaced dark and light bands (diffraction pattern) at the edge of a shadow.
  • digital electronics — (electronics)   The implementation of two-valued logic using electronic logic gates such as and gates, or gates and flip-flops. In such circuits the logical values true and false are represented by two different voltages, e.g. 0V for false and +5V for true. Similarly, numbers are normally represented in binary using two different voltages to represented zero and one. Digital electronics contrasts with analogue electronics which represents continuously varying quantities like sound pressure using continuously varying voltages. Digital electronics is the foundation of modern computers and digital communications. Massively complex digital logic circuits with millions of gates can now be built onto a single integrated circuit such as a microprocessor and these circuits can perform millions of operations per second.
  • diplomatic immunity — exemption from taxation, searches, arrest, etc., enjoyed by diplomatic officials and their dependent families under international law, and usually on a reciprocal basis.
  • direct grant school — (in Britain, formerly) a school financed by endowment, fees, and a state grant conditional upon admittance of a percentage of nonpaying pupils nominated by the local education authority
  • direction indicator — aerial used in wireless communication
  • directional coupler — (communications)   (tap) A passive device used in cable systems to divide and combine radio frequency signals. A directional coupler has at least three ports: line in, line out, and the tap. The signal passes between line in and line out ports with loss referred to as the insertion loss. A small portion of the signal power applied to the line in port passes to the tap port. A signal applied to the tap port is passed to the line in port less the tap attenuation value. The tap signals are isolated from the line out port to prevent reflections. A signal applied to the line out port passes to the line in port and is isolated from the tap port. Some devices provide more than one tap output line (multi-taps).
  • disciplinary action — punishment or caution
  • discretionary trust — a trust in which the beneficiaries' shares are not fixed in the trust deed but are left to the discretion of other persons, often the trustees
  • discriminated union — (theory)   The discriminated union of two sets A and B is A + B = {(inA, a) | a in A} U {(inB, b)| b in B} where inA and inB are arbitrary tags which specify which summand an element originates from. A type (especially an algebraic data type) might be described as a discriminated union if it is a sum type whose objects consist of a tag to say which part of the union they belong to and a value of the corresponding type.
  • displaced homemaker — a woman recently divorced, separated, or widowed after many years as a homemaker.
  • distillation column — a type of still fitted with interior baffles, used for fractional distillation. Compare still2 (def 1).
  • dobsonian telescope — a relatively inexpensive Newtonian telescope, suitable for visual but not photographic use, in which the tube assembly slips freely in the lower base.
  • domain architecture — (systems analysis)   A generic, organisational structure or design for software systems in a domain. The domain architecture contains the designs that are intended to satisfy requirements specified in the domain model. A domain architecture can be adapted to create designs for software systems within a domain and also provides a framework for configuring assets within individual software systems.
  • dominance hierarchy — a system or set of relationships in animal groups that is based on a hierarchical ranking, usually established and maintained by behavior in aggressive encounters: one or a few members hold the highest rank and the others are submissive to those ranking higher and dominant to those ranking lower.
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