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17-letter words containing n, o, c, t

  • mineralocorticoid — Biochemistry. any of a group of corticosteroid hormones, synthesized by the adrenal cortex, that regulate the excretion or reabsorption of sodium and potassium by the kidneys, salivary glands, and sweat glands.
  • miscommunications — Plural form of miscommunication.
  • misidentification — to identify incorrectly.
  • missing in action — If a member of the armed forces is missing in action, they have not returned from a battle, their body has not been found, and they are not thought to have been captured.
  • mitochondrial dna — DNA found in mitochondria, which contains some structural genes and is generally inherited only through the female line
  • mitre corporation — (body)   A US federally funded R&D center, spun off in 1958 from the MIT Lincoln Laboratory (also an FFRDC). MITRE is a non-profit corporation chartered to do R&D in the public interest. MITRE were responsible for system engineering and implementation oversight of SAGE. MITRE does not stand for MIT Research and Engineering, though it could have.
  • monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
  • monochromatically — of or having one color.
  • monolith catalyst — A monolith catalyst is a type of catalyst whose surface is flat.
  • mont-saint-michel — a rocky islet near the coast of NW France, in an inlet of the Gulf of St. Malo: famous abbey and fortress.
  • monte carlo rally — an annual car rally the destination of which is Monte Carlo
  • motion of censure — a motion by opposition parties criticizing the government
  • motorcycle engine — the engine of a motorcycle
  • motorcycle racing — sport: competing on motorcycles
  • mount kirkpatrick — a mountain in Antarctica, in S Victoria Land in the Queen Alexandra Range. Height: 4528 m (14 856 ft)
  • mountain sickness — illness caused by being at high altitude
  • mountain viscacha — the mountain chinchilla
  • 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.
  • 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.
  • multiple cropping — the use of the same field for two or more crops, whether of the same or of different kinds, successively during a single year.
  • munitions factory — a factory where munitions are made
  • muscae volitantes — floater (def 6).
  • nakhon ratchasima — a city in central Thailand.
  • naming convention — 1.   (programming)   variable naming convention. 2.   (networking)   Universal Naming Convention.
  • 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.
  • 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 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 resources — a naturally occurring source of wealth, as land or water.
  • 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.
  • natural-resources — a naturally occurring source of wealth, as land or water.
  • near-earth object — a comet or asteroid pushed by the gravitational attraction of nearby planets into an orbit that allows it to enter the earth's orbit and thereby pose a danger of collision. Abbreviation: NEO.
  • neck of the woods — the part of the body of an animal or human being that connects the head and the trunk.
  • 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.
  • neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
  • neuropsychologist — A neurologist or psychologist whose speciality is neuropsychology.
  • new scotland yard — See under Scotland Yard (def 1).
  • ninth commandment — “Thou shalt not bear false witness against thy neighbor”: ninth of the Ten Commandments.
  • nitrogen narcosis — a semistupor, lightheadedness, or euphoria experienced by deep-sea divers when nitrogen from air enters the blood at higher than atmospheric pressure.
  • nitrohydrochloric — (chemistry) Of, pertaining to, or containing, nitric acid and hydrochloric acids.
  • nitroxanthic acid — picric acid.
  • non compos mentis — not of sound mind; mentally incapable of managing one's affairs.
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