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17-letter words containing c, u, r, a, n, d

  • drained of colour — colourless
  • duality principle — the principle that a mathematical duality exists under certain conditions.
  • dynamic insurance — Dynamic insurance is a type of insurance coverage where the policyholder can choose to increase benefits and premiums by a fixed percentage each year to offset the effects of inflation.
  • facts and figures — details; precise information
  • fluid lubrication — lubrication in which bearing surfaces are separated by an oil film sustained by the motion of the parts
  • foundation course — A foundation course is a course that you do at some colleges and universities in order to prepare yourself for a longer or more advanced course.
  • full load current — A full load current is the largest current that a motor or other device is designed to carry under particular conditions.
  • further education — adult education.
  • gnu privacy guard —
  • grand touring car — GT (def 2).
  • grand union canal — a canal in S England linking London and the Midlands: opened in 1801
  • grande chartreuse — the Carthusian monastery at Grenoble, France: the chief monastery of the Carthusians until 1903.
  • greenland current — the ocean current flowing clockwise around S Greenland.
  • half-round chisel — a cold chisel with a semicircular cutting edge used for making narrow channels
  • hard nut to crack — a dry fruit consisting of an edible kernel or meat enclosed in a woody or leathery shell.
  • haroun-al-raschid — Harun al-Rashid.
  • homeland security — national defence
  • hydrofluorocarbon — Any of a class of partly chlorinated and fluorinated hydrocarbons, used as an alternative to chlorofluorocarbons in foam production, refrigeration, and other processes.
  • in the background — behind the focus of attention
  • incubation period — the period between infection and the appearance of signs of a disease.
  • induction furnace — a type of electric furnace used for melting a charge of scrap by the heat produced by its own electrical resistance.
  • industrial action — job action.
  • industrial school — a school for teaching one or more branches of industry; trade or vocational school.
  • inertial guidance — a guidance system for an aerospace vehicle, in which self-contained devices determine the vehicle's course on the basis of the directions and magnitudes of the accelerations it undergoes in flight.
  • integrated course — a course that covers several subjects
  • intercommunicated — Simple past tense and past participle of intercommunicate.
  • lago de nicaragua — Spanish name of Lake Nicaragua.
  • liberal education — an education based primarily on the liberal arts, emphasizing the development of intellectual abilities as opposed to the acquisition of professional skills.
  • manufactured home — a prefabricated house, assembled in modular sections.
  • mare fecunditatis — (Sea of Fertility) a dark plain in the fourth quadrant and extending into the first quadrant of the face of the moon: about 160,000 sq. mi. (415,000 sq. km).
  • marriage guidance — counselling for married couples
  • medical insurance — a type of insurance intended to cover possible future medical expenses
  • medical marijuana — marijuana prescribed by a doctor and used as a medicine: medical marijuana in pill form or oral spray.
  • microencapsulated — Encapsulated using microencapsulation.
  • microminiaturized — Simple past tense and past participle of microminiaturize.
  • multi-directional — extending or operating in several directions at the same time; functioning or going in more than one direction: a multidirectional stereo speaker system.
  • multidisciplinary — composed of or combining several usually separate branches of learning or fields of expertise: a multidisciplinary study of the 18th century.
  • musical interlude — an interval in a play, event or occasion during which music is played
  • mustard and cress — Mustard and cress is very young mustard plants and cress plants grown together and eaten in salad.
  • nasolacrimal duct — a membranous canal extending from the lacrimal sac to the nasal cavity, through which tears are discharged into the nose.
  • natural deduction — (logic)   A set of rules expressing how valid proofs may be constructed in predicate logic. In the traditional notation, a horizontal line separates premises (above) from conclusions (below). Vertical ellipsis (dots) stand for a series of applications of the rules. "T" is the constant "true" and "F" is the constant "false" (sometimes written with a LaTeX \perp). "^" is the AND (conjunction) operator, "v" is the inclusive OR (disjunction) operator and "/" is NOT (negation or complement, normally written with a LaTeX \neg). P, Q, P1, P2, etc. stand for propositions such as "Socrates was a man". P[x] is a proposition possibly containing instances of the variable x, e.g. "x can fly". A proof (a sequence of applications of the rules) may be enclosed in a box. A boxed proof produces conclusions that are only valid given the assumptions made inside the box, however, the proof demonstrates certain relationships which are valid outside the box. For example, the box below labelled "Implication introduction" starts by assuming P, which need not be a true proposition so long as it can be used to derive Q. Truth introduction: - T (Truth is free). Binary AND introduction: ----------- | . | . | | . | . | | Q1 | Q2 | ----------- Q1 ^ Q2 (If we can derive both Q1 and Q2 then Q1^Q2 is true). N-ary AND introduction: ---------------- | . | .. | . | | . | .. | . | | Q1 | .. | Qn | ---------------- Q1^..^Qi^..^Qn Other n-ary rules follow the binary versions similarly. Quantified AND introduction: --------- | x . | | . | | Q[x] | --------- For all x . Q[x] (If we can prove Q for arbitrary x then Q is true for all x). Falsity elimination: F - Q (Falsity opens the floodgates). OR elimination: P1 v P2 ----------- | P1 | P2 | | . | . | | . | . | | Q | Q | ----------- Q (Given P1 v P2, if Q follows from both then Q is true). Exists elimination: Exists x . P[x] ----------- | x P[x] | | . | | . | | Q | ----------- Q (If Q follows from P[x] for arbitrary x and such an x exists then Q is true). OR introduction 1: P1 ------- P1 v P2 (If P1 is true then P1 OR anything is true). OR introduction 2: P2 ------- P1 v P2 (If P2 is true then anything OR P2 is true). Similar symmetries apply to ^ rules. Exists introduction: P[a] ------------- Exists x.P[x] (If P is true for "a" then it is true for all x). AND elimination 1: P1 ^ P2 ------- P1 (If P1 and P2 are true then P1 is true). For all elimination: For all x . P[x] ---------------- P[a] (If P is true for all x then it is true for "a"). For all implication introduction: ----------- | x P[x] | | . | | . | | Q[x] | ----------- For all x . P[x] -> Q[x] (If Q follows from P for arbitrary x then Q follows from P for all x). Implication introduction: ----- | P | | . | | . | | Q | ----- P -> Q (If Q follows from P then P implies Q). NOT introduction: ----- | P | | . | | . | | F | ----- / P (If falsity follows from P then P is false). NOT-NOT: //P --- P (If it is not the case that P is not true then P is true). For all implies exists: P[a] For all x . P[x] -> Q[x] ------------------------------- Q[a] (If P is true for given "a" and P implies Q for all x then Q is true for a). Implication elimination, modus ponens: P P -> Q ---------- Q (If P and P implies Q then Q). NOT elimination, contradiction: P /P ------ F (If P is true and P is not true then false is true).
  • nuclear deterrent — a country's nuclear weapons viewed as a deterrent to other countries from attacking
  • nuclear radiation — Physics. radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission.
  • nuclear threshold — the point in war at which a combatant brings nuclear weapons into use
  • nursery education — education provided at a school for young children, usually from three to five years old
  • odour of sanctity — sanctimoniousness
  • paratungstic acid — an oxyacid acid of tungsten. Formula: H10W12O14
  • performance drugs — the drugs that are taken illegally by athletes to enhance their sporting performance
  • plastics industry — the industry that makes plastics
  • pressurized cabin — the cabin of an aircraft in which the air has been pressurized
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