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17-letter words containing a, n, c, o, r

  • mechanoelectrical — Describing the production of electricity by mechanical motion; especially in a transducer.
  • megaelectron volt — million electron volts.
  • meissen porcelain — Dresden china.
  • membrane recovery — Membrane recovery is a process which uses membranes to obtain hydrogen from refinery fuel gas, hydrocrackers, and chemical processes such as methanol production.
  • merchant of death — a company, nation, or person that sells military arms on the international market, usually to the highest bidder and without scruple or regard for political ramifications.
  • mercy otis warrenEarl, 1891–1974, U.S. lawyer and political leader: chief justice of the U.S. 1953–69.
  • michigan bankroll — a large roll of paper money in small denominations.
  • microdermabrasion — A cosmetic treatment in which the face is sprayed with exfoliant crystals to remove dead epidermal cells.
  • microdistillation — the distillation of minute quantities of material.
  • microencapsulated — Encapsulated using microencapsulation.
  • microevolutionary — Of or pertaining to microevolution.
  • microinvertebrate — An invertebrate of microscopic size.
  • micromanipulation — the technique of performing mechanical operations under high magnification through the use of specialized tools.
  • micromanipulators — Plural form of micromanipulator.
  • microminiaturized — Simple past tense and past participle of microminiaturize.
  • micropaleontology — the branch of paleontology dealing with the study of microscopic fossils.
  • microphanerophyte — any shrub or tree having a height of 2 to 8 metres
  • mid-oceanic ridge — the continuous, double-ridged chain of mountains on the ocean floor, extending through the middle of the Atlantic Ocean and into the Indian and Pacific oceans
  • mileage indicator — a device on a vehicle such as a car, plane, etc which indicates the number of miles travelled
  • military covenant — the supposed understanding that members of the armed forces and their families will be supported by the state in the event of injury or death in the course of duty
  • 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.
  • 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.
  • monte carlo rally — an annual car rally the destination of which is Monte Carlo
  • morphic resonance — the idea that, through a telepathic effect or sympathetic vibration, an event or act can lead to similar events or acts in the future or an idea conceived in one mind can then arise in another
  • 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)
  • 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.
  • munitions factory — a factory where munitions are made
  • nakhon ratchasima — a city in central Thailand.
  • 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 security — defence of a country
  • 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.
  • nephelometrically — By means of nephelometry.
  • neurobiologically — In terms of or by means of neurobiology.
  • neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
  • neuropharmacology — the branch of pharmacology concerned with the effects of drugs on the nervous system.
  • neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
  • never looked back — If you say that someone did something and then never looked back, you mean that they were very successful from that time on.
  • new scotland yard — See under Scotland Yard (def 1).
  • nicholas bourbaki — the pseudonym of a group of mainly French mathematicians that, since 1939, has been producing a monumental work on advanced mathematics, Eléments de Mathématique
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