18-letter words containing a, d, i, e, n
- continued fraction — a number plus a fraction whose denominator contains a number and a fraction whose denominator contains a number and a fraction, and so on
- cooling degree-day — a degree-day above the standard temperature of 75°F (24°C), used in estimating the energy requirements for air conditioning and refrigeration.
- cordillera central — a mountain range in Colombia: part of the Andes. Highest peak, Huila, 18,700 feet (5700 meters).
- corporate identity — business brand
- counter-adaptation — the act of adapting.
- countryside agency — (in England) a government agency that promotes the conservation and enjoyment of the countryside and aims to stimulate employment in rural areas
- credibility rating — a supposed measure of how far a person can be believed or trusted
- crude oil fraction — A crude oil fraction is a component of crude oil, which has its own particular molecular composition, weight, and boiling point.
- custodial sentence — a sentence given by a court that involves a term of imprisonment
- customs and excise — Customs and Excise is a British government department which is responsible for collecting taxes on imported and exported goods. Compare Customs Service.
- daisywheel printer — (printer) A kind of impact printer where the characters are arranged on the ends of the spokes of a wheel (resembling the petals on a daisy). The wheel (usually made of plastic) is rotated to select the character to print and then an electrically operated hammer mechanism bends the selected spoke forward slightly, sandwiching an ink ribbon between the character and the paper, as in a typewriter. One advantage of this arrangement over that of a typewriter is that different wheels may be inserted to produce different typefaces.
- danish west indies — the former possession of Denmark in the W Lesser Antilles, sold to the US in 1917
- daytime television — television broadcasts that are shown during the daytime rather than in the evening
- de bruijn notation — (language) A variation of lambda notation for specifying functions using numbers instead of names to refer to formal parameters. A reference to a formal parameter is a number which gives the number of lambdas (written as \ here) between the reference and the lambda which binds the parameter. E.g. the function \ f . \ x . f x would be written \ . \ . 1 0. The 0 refers to the innermost lambda, the 1 to the next etc. The chief advantage of this notation is that it avoids the possibility of name capture and removes the need for alpha conversion.
- de-differentiation — a process by which structures or behaviors that were specialized for a specific function lose their specialization and become simplified or generalized.
- de-objectification — to present as an object, especially of sight, touch, or other physical sense; make objective; externalize.
- dead as a doornail — completely dead
- dead man's fingers — a soft coral, Alcyonium digitatum, with long finger-like polyps
- dead-man's fingers — any of various fungi, sponges, plant roots, animal parts, etc., having fingerlike projections and a pale or dull color, as the gray-black woodland fungus Xylaria polymorpha or the whitish spongy gills of a food crab.
- dead-stick landing — Aeronautics, Aerospace. a landing of an airplane or space vehicle with the engine cut off.
- deadweight tonnage — the capacity in long tons of cargo, passengers, fuel, stores, etc. (deadweight tons) of a vessel: the difference between the loaded and light displacement tonnage of the vessel.
- deanthropomorphism — the ridding of philosophy or religion of anthropomorphic beliefs and doctrines.
- debt consolidation — the process of taking out a new loan (often secured on one's property) in order to pay off a number of existing debts
- decachlorobiphenyl — (organic compound) The fully chlorinated polychlorinated biphenyl containing ten chlorine atoms.
- dechristianization — The act of dechristianizing; the systematic removal of Christianity or Christian elements.
- declaration of war — a formal statement made by one country to another that a state of war now exists between them
- decompartmentalize — to remove excessive compartmentalization from (an organization)
- deep-sea fisherman — a person who takes part in deep-sea fishing
- deficiency account — an account summarizing the financial condition of an individual or company in danger of bankruptcy.
- deficiency disease — any condition, such as pellagra, beriberi, or scurvy, produced by a lack of vitamins or other essential substances
- deficiency payment — a payment made to a commodity producer that represents the difference between the market price and the guaranteed price
- definitive plumage — the plumage of a bird that, once attained, does not change significantly in color or pattern for the rest of the bird's life.
- deinstitutionalize — to discharge (a patient) as from a mental institution
- delmarva peninsula — a peninsula of the northeast US, between Chesapeake Bay and the Atlantic
- demand liabilities — the assets of a financial institution that are demandable by depositors
- demilitarized zone — an area from which military presence or function has been removed
- dependent variable — a variable in a mathematical equation or statement whose value depends on that taken on by the independent variable
- desalination plant — a factory where salt is removed from salt water in order to make the water suitable for drinking and irrigation
- destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
- detective sergeant — a police officer who investigates crime and who ranks above a detective constable but below a detective inspector
- determinate growth — growth of a plant stem that is terminated early by the formation of a bud
- devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
- diabetes insipidus — a disorder of the pituitary gland causing excessive thirst and excretion of large quantities of dilute urine
- diagnostic testing — Diagnostic testing is the testing of a vehicle, or one of its systems or parts, in order to identify why it is not working properly.
- diaminofluorescein — (organic compound) A fluorescein into which two amino groups have been substituted.
- diamondback turtle — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
- didaskaleinophobia — The fear of going to school.
- dielectric heating — the heating of a nonconducting substance caused by dielectric loss when the material is placed in a variable electric field.
- dietary supplement — a substance taken in addition to what you eat in order to promote health
- digital humanities — (used with a singular verb) the study of literature, philosophy, etc., as facilitated by computer technology or digital media: Digital humanities uses data analysis to find patterns in large bodies of text. the set of methodologies used in such scholarship.