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18-letter words containing a, t, r, i, l

  • continental margin — the offshore zone, consisting of the continental shelf, slope, and rise, that separates the dry-land portion of a continent from the deep ocean floor.
  • controllable-pitch — (of a marine or aircraft propeller) having blades whose pitch can be changed during navigation or flight; variable-pitch.
  • conversation class — a class in which one learns to speak a foreign language
  • conversationalists — Plural form of conversationalist.
  • cordillera central — a mountain range in Colombia: part of the Andes. Highest peak, Huila, 18,700 feet (5700 meters).
  • counterculturalism — The counterculture movement or lifestyle.
  • counterculturalist — the culture and lifestyle of those people, especially among the young, who reject or oppose the dominant values and behavior of society.
  • countercyclicality — The quality of being countercyclical.
  • coupling capacitor — A coupling capacitor is a capacitor that is used to transmit an alternating current signal from one node to another.
  • cracked distillate — A cracked distillate is a clear yellow liquid, mostly containing hydrocarbons, which is produced by steam cracking without a catalyst.
  • cranial osteopathy — osteopathy that focuses on the cranium and the spine
  • credibility rating — a supposed measure of how far a person can be believed or trusted
  • crested dog's-tail — a common wiry perennial grass, Cynosurus cristatus, of meadows and pasture
  • critical apparatus — the variant readings, footnotes, etc found in a scholarly work or a critical edition of a text
  • critical constants — the physical constants that express the properties of a substance in its critical state
  • crude oil desalter — A crude oil desalter is equipment which removes inorganic salts from crude oil, using chemical or electrostatic separation.
  • crude oil fraction — A crude oil fraction is a component of crude oil, which has its own particular molecular composition, weight, and boiling point.
  • crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
  • crystal oscillator — a clear, transparent mineral or glass resembling ice.
  • cultural diffusion — act of diffusing; state of being diffused.
  • cultural diversity — the cultural variety and cultural differences that exist in the world, a society, or an institution: Dying languages and urbanization are threats to cultural diversity.
  • cultural pluralism — a condition in which minority groups participate fully in the dominant society, yet maintain their cultural differences.
  • cultural sociology — the study of the origins and development of societal institutions, norms, and practices.
  • cultural universal — a cultural pattern extant in every known society.
  • cumulative scoring — a method of scoring in which the score of a partnership is taken as the sum of their scores on all hands played.
  • curvature of field — a monochromatic aberration of a lens or other optical system in which the focal surface is curved, the refracted image of an object oriented perpendicular to the axis of the lens lying on a curved surface rather than in a plane perpendicular to the axis.
  • customer relations — Customer relations are the relationships that a business has with its customers and the way in which it treats them.
  • 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.
  • dead-letter office — an office where undeliverable letters were taken for storage
  • 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)
  • deferred liability — income received in advance and carried forward as a liability until the associated goods, services, or benefits are delivered
  • 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
  • depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
  • 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
  • dia de los muertos — Day of the Dead.
  • 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
  • dichloracetic acid — a highly corrosive acid. Formula: C2H2Cl2O2
  • dictionary catalog — a library catalog having all its entries, including authors, titles, subjects, etc., in one general alphabetical sequence.
  • 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 multimeter — (electronics)   (DMM) A peice of test equipment used for measuring voltage, current, resistance, and possibly other electircal quantities and displaying the value in number form.
  • digital signatures — digital signature
  • digital switchover — the process of changing the method of transmitting television from analogue to digital format
  • dihydrotachysterol — a white, crystalline, water-insoluble sterol, C 28 H 46 O, derived from ergosterol: used chiefly in the treatment of hypoparathyroidism.
  • 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.
  • diplomatic service — diplomatic corps
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