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17-letter words containing a, t, i, l, n

  • multicollinearity — (statistics) A phenomenon in which two or more predictor variables in a multiple regression model are highly correlated, so that the coefficient estimates may change erratically in response to small changes in the model or data.
  • multidisciplinary — composed of or combining several usually separate branches of learning or fields of expertise: a multidisciplinary study of the 18th century.
  • multigenerational — of or relating to several generations, as of a family, or society: a multigenerational novel covering 300 years.
  • multimillionaires — Plural form of multimillionaire.
  • multiple integral — an integral in which the integrand involves a function of more than one variable and which requires for evaluation repetition of the integration process.
  • multiple-unit car — a self-propelled railroad car, generally used in commuting service, equipped so that a train of such cars can be operated from any one of them.
  • multipotentiality — The capacity to develop in multiple ways; the state of having multiple potentialities.
  • muscae volitantes — floater (def 6).
  • musical interlude — an interval in a play, event or occasion during which music is played
  • 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
  • nanotechnological — Of, pertaining to, or by means of nanotechnology.
  • nasolacrimal duct — a membranous canal extending from the lacrimal sac to the nasal cavity, through which tears are discharged into the nose.
  • nathaniel currier — Nathaniel, 1813–88, U.S. lithographer. Compare Ives (def 4).
  • national assembly — the body constituted by the French Third Estate in June 1789 after the calling of the Estates General. It was dissolved in Sept 1791 to be replaced by the new Legislative Assembly
  • national cemetery — a cemetery, maintained by the U.S. government, for persons who have served honorably in the armed forces.
  • national covenant — an agreement (1638) among Scottish Presbyterians to uphold their faith in Scotland.
  • national heritage — country's cultural legacy
  • national identity — characteristics of a given nationality
  • national monument — a monument, as a historic site or geographical area, owned and maintained in the public interest by the federal government.
  • national seashore — an area of seacoast set aside and maintained by the U.S. government for purposes of recreation or wildlife study.
  • national security — defence of a country
  • nationalist china — China, Republic of.
  • nationalistically — In a nationalistic manner.
  • 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).
  • natural harmonics — harmonics of a note produced on a stringed instrument by lightly touching an open or unstopped sounded string.
  • natural hat trick — three goals scored in succession by one player in one game or one period.
  • natural logarithm — a logarithm having e as a base. Symbol: ln.
  • natural selection — the process by which forms of life having traits that better enable them to adapt to specific environmental pressures, as predators, changes in climate, or competition for food or mates, will tend to survive and reproduce in greater numbers than others of their kind, thus ensuring the perpetuation of those favorable traits in succeeding generations.
  • nautical twilight — the period of time during which the sun is 12° below the horizon
  • naval air station — military airbase for the navy
  • navigation lights — lights on an aircraft
  • negative catalyst — an inhibitor.
  • negative particle — a word that indicates negativity, for example 'not' in English or 'ne pas' in French
  • negative polarity — the grammatical character of a word or phrase, such as ever or any, that may normally be used only in a semantically or syntactically negative or interrogative context
  • negative theology — a theological approach or tradition in which the nature of God is thought to be unknowable and is only understood through negative statements. See also apophasis (def 2).
  • negotiating table — If you say that people are at the negotiating table, you mean that they are having discussions in order to settle a dispute or reach an agreement.
  • neo-malthusianism — a view or doctrine advocating population control, especially by contraception.
  • neo-scholasticism — a contemporary application of Scholasticism to modern problems and life.
  • nephelometrically — By means of nephelometry.
  • neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
  • newcastle disease — a rapidly spreading virus-induced disease of birds and domestic fowl, as chickens, marked by respiratory difficulty, reduced egg production and, in chicks, paralysis.
  • 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.
  • ngaliema mountain — Mount, a mountain with two summits, in central Africa, between Uganda and the Democratic Republic of the Congo: highest peak in the Ruwenzori group. 16,790 feet (5119 meters).
  • nial systems ltd. — Distributors of Q'NIAL. Address: Ottawa Canada. Telephone: Canada (613) 234 4188.
  • nightshade family — the plant family Solanaceae, characterized by herbaceous plants, trees, shrubs, and vines having alternate, simple or pinnate leaves, conspicuous flowers, and fruit in the form of a berry or capsule, and including belladonna, eggplant, nightshade, peppers of the genus Capsicum, petunia, potato, tobacco, and tomato.
  • non-assignability — capable of being specified: The word has no assignable meaning in our language.
  • non-controversial — of, relating to, or characteristic of controversy, or prolonged public dispute, debate, or contention; polemical: a controversial book.
  • non-environmental — the aggregate of surrounding things, conditions, or influences; surroundings; milieu.
  • non-institutional — of, relating to, or established by institution.
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