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18-letter words containing a, p, e, r

  • deep-sea fisherman — a person who takes part in deep-sea fishing
  • delaware water gap — a gorge on the boundary between E Pennsylvania and NW New Jersey.
  • delmarva peninsula — a peninsula of the northeast US, between Chesapeake Bay and the Atlantic
  • departmental store — a department store.
  • departure platform — a raised area at a railway station from which passengers can board trains prior to their departing
  • dependency grammar — a type of generative grammar in which grammatical structure is determined by the relationship between a governor and its dependents
  • dependent variable — a variable in a mathematical equation or statement whose value depends on that taken on by the independent variable
  • depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
  • depth-first search — (algorithm)   A graph search algorithm which extends the current path as far as possible before backtracking to the last choice point and trying the next alternative path. Depth-first search may fail to find a solution if it enters a cycle in the graph. This can be avoided if we never extend a path to a node which it already contains. Opposite of breadth first search. See also iterative deepening.
  • descriptive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
  • 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
  • dietary supplement — a substance taken in addition to what you eat in order to promote health
  • dimethyltryptamine — a hallucinogenic drug, C 12 H 16 N 2 , with an action of short duration. Abbreviation: DMT.
  • diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
  • diphtheria vaccine — a vaccine used to produce immunity against diphtheria
  • diplomatic service — diplomatic corps
  • discharge printing — a fabric-printing method in which the material is dyed and then certain areas are discharged so as to permit the original hue or its color replacement to act as a pattern against the colored ground.
  • dispersible tablet — A dispersible tablet is a tablet that disintegrates in water or other liquid.
  • disproportionately — not proportionate; out of proportion, as in size or number.
  • divine inspiration — insight provided by higher power
  • dna fingerprinting — the use of a DNA probe for the identification of an individual, as for the matching of genes from a forensic sample with those of a criminal suspect.
  • doctype decoration — (humour)   When a web author adds a doctype declaration but doesn't bother to write valid HTML.
  • dominican republic — a republic in the West Indies, occupying the E part of the island of Hispaniola. 19,129 sq. mi. (49,545 sq. km). Capital: Santo Domingo.
  • domremy-la-pucelle — a village in Lorraine, NE France, SW of Nancy: birthplace of Joan of Arc.
  • dot matrix printer — (hardware, printer)   A kind of printer with a vertical column of up to 48 small closely packed needles or "pins" each of which can be individually forced forward to press an ink ribbon against the paper. The print head is repeatedly scanned across the page and different combinations of needles activated at each point. Dot matrix printers are noisy compared to non-impact printers.
  • dot-matrix printer — device: prints using matrix dots
  • double-page spread — two pages treated as one in a publication, with images or text extending across the binding
  • drainpipe trousers — trousers with very narrow legs
  • dry-powder inhaler — A dry-powder inhaler is a device that delivers medication to the lungs in the form of a dry powder.
  • due process of law — the administration of justice in accordance with established rules and principles
  • earnings per share — the net income of a corporation divided by the total number of shares of its common stock outstanding at a given time. Abbreviation: EPS.
  • eastern hemisphere — the eastern part of the terrestrial globe, including Asia, Africa, Australia, and Europe.
  • echoencephalograph — a device that employs reflected ultrasonic waves to examine the position of brain structures.
  • eclipsing variable — a variable star whose changes in brightness are caused by periodic eclipses of two stars in a binary system.
  • economic geography — a branch of geography that deals with the relation of physical and economic conditions to the production and utilization of raw materials and their manufacture into finished products.
  • egg and spoon race — a novelty race in which contestants each carry an egg in a spoon to the finish line, the winner being the first to finish without dropping or breaking the egg.
  • egg-and-spoon race — a race in which runners carry an egg balanced in a spoon
  • eggshell porcelain — a type of very thin translucent porcelain originally made in China
  • ejaculatio praecox — premature ejaculation during sexual intercourse
  • electric potential — the work required to transfer a unit positive electric charge from an infinite distance to a given point against an electric field
  • electroacupuncture — the insertion into the body of one or more needles through which an electric current is passed
  • electrocardiograph — A machine used for electrocardiography.
  • electron transport — the metabolic process in mitochondria or chloroplasts, in which electrons are transferred in stages from energy-rich compounds to molecular oxygen with liberation of energy
  • electrophotography — Any of several methods of photocopying in which an image is created and then transferred between surfaces using static electricity.
  • electrotherapeutic — Relating to electrotherapeutics.
  • elizabeth petrovna — 1709-62; empress of Russia (1741-62): daughter of Peter I
  • endangered species — animal, plant becoming extinct
  • entrepreneurialism — The spirit or state of acting in an entrepreneurial manner.
  • epstein-barr virus — a virus belonging to the herpes family that causes infectious mononucleosis; it is also implicated in the development of Burkitt's lymphoma and Hodgkin's disease
  • equinoctial spring — either of the two highest spring tides that occur at the equinoxes
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