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17-letter words containing d, e, n, a, t, u

  • indistinguishable — not distinguishable.
  • induction furnace — a type of electric furnace used for melting a charge of scrap by the heat produced by its own electrical resistance.
  • induction heating — a method of heating a conducting material, as metal in a furnace, by using electromagnetic induction to establish a current in the material.
  • industrial design — the art that deals with the design problems of manufactured objects, including problems of designing such objects with consideration for available materials and means of production, of designing packages, bottles, etc., for manufactured goods, and of graphic design for manufactured objects, packages, etc.
  • industrial estate — industrial park.
  • industrial unrest — business: among employees
  • 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.
  • institutionalised — to make institutional.
  • institutionalized — to make institutional.
  • integrated course — a course that covers several subjects
  • intercommunicated — Simple past tense and past participle of intercommunicate.
  • interdental brush — a small brush that is used to clean between the teeth
  • interrupt handler — (software)   A routine which is executed when an interrupt occurs. Interrupt handlers typically deal with low-level events in the hardware of a computer system such as a character arriving at a serial port or a tick of a real-time clock. Special care is required when writing an interrupt handler to ensure that either the interrupt which triggered the handler's execution is masked out (inhibitted) until the handler exits, or the handler is re-entrant so that multiple concurrent invocations will not interfere with each other. If interrupts are masked then the handler must execute as quickly as possible so that important events are not missed. This is often arranged by splitting the processing associated with the event into "upper" and "lower" halves. The lower part is the interrupt handler which masks out further interrupts as required, checks that the appropriate event has occurred (this may be necessary if several events share the same interrupt), services the interrupt, e.g. by reading a character from a UART and writing it to a queue, and re-enabling interrupts. The upper half executes as part of a user process. It waits until the interrupt handler has run. Normally the operating system is responsible for reactivating a process which is waiting for some low-level event. It detects this by a shared flag or by inspecting a shared queue or by some other synchronisation mechanism. It is important that the upper and lower halves do not interfere if an interrupt occurs during the execution of upper half code. This is usually ensured by disabling interrupts during critical sections of code such as removing a character from a queue.
  • island of the sun — Sicily: the island where Helius kept his oxen.
  • italian greyhound — one of an Italian breed of toy dogs resembling a greyhound.
  • juazeiro do norte — a city in Bahia state, NE Brazil.
  • judgment of paris — the decision by Paris to award Aphrodite the golden apple of discord competed for by Aphrodite, Athena, and Hera.
  • jurisprudentially — In terms of jurisprudence.
  • juvenile diabetes — any of several disorders characterized by increased urine production.
  • ladder tournament — a tournament in which the entrants are listed by name and rank, advancement being by means of challenging and defeating an entrant ranked one or two places higher.
  • least upper bound — an upper bound that is less than or equal to all the upper bounds of a particular set. 3 is the least upper bound of the set consisting of 1, 2, 3. Abbr.: lub.
  • legendre equation — a differential equation of the form (1− x 2) d2y/dx2 − 2 xdy/dx + a (a + 1) y = 0, where a is an arbitrary constant.
  • liberal education — an education based primarily on the liberal arts, emphasizing the development of intellectual abilities as opposed to the acquisition of professional skills.
  • liquid propellant — a rocket propellant in liquid form.
  • longitudinal wave — a wave in which the direction of displacement is the same as the direction of propagation, as a sound wave.
  • 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).
  • media access unit — (networking)   (MAU or Multistation Access Unit, MSAU) In a Token Ring network, a device to attach multiple network stations in a star topology, internally wired to connect the stations into a logical ring. The MAU contains relays to short out nonoperating stations. Multiple MAUs can be connected into a larger ring through their Ring In/Ring Out connectors.
  • medulla oblongata — the lowest or hindmost part of the brain, continuous with the spinal cord.
  • metatungstic acid — an oxyacid acid of tungsten. Formula: H2W4O13
  • microencapsulated — Encapsulated using microencapsulation.
  • microminiaturized — Simple past tense and past participle of microminiaturize.
  • misunderstandable — Capable of being misunderstood.
  • misunderstandings — Plural form of misunderstanding.
  • money-market fund — a mutual fund that invests in the money market.
  • mounted policeman — policemen who patrol on horseback
  • 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.
  • mundane astrology — the astrology of worldly events, in contrast to the astrology of the individual: used especially in interpretations and forecasts involving politics, the stock market, weather, and disasters.
  • 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.
  • mutual inductance — the ratio of the electromotive force in one of two circuits to the rate of change of current in the other circuit.
  • naked singularity — an infinitely dense point mass without a surrounding black hole
  • 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).
  • neurodegenerative — Resulting in or characterized by degeneration of the nervous system, especially the neurons in the brain.
  • newfoundland time — a form of civil time observed on the island of Newfoundland, one and one-half hours later than Eastern time and a half hour later than Atlantic time.
  • nonunderstandable — Not understandable.
  • 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
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