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17-letter words containing d, u, l

  • medicochirurgical — pertaining to medicine and surgery.
  • medium close shot — a shot taken fairly close to the subject, but not as close as a close-up
  • medulla oblongata — the lowest or hindmost part of the brain, continuous with the spinal cord.
  • mercuric chloride — a white, crystalline, water-soluble, strongly acrid, highly poisonous solid, HgCl 2 , prepared by sublimation of chlorine with mercury, and used chiefly as an antiseptic.
  • mercuric sulphide — a compound of mercury, usually existing as a black solid (metacinnabarite) or a red solid (cinnabar or vermilion), which is used as a pigment. Formula: HgS
  • methylidyne group — the trivalent group ≡CH.
  • microencapsulated — Encapsulated using microencapsulation.
  • millennium bridge — a steel bridge for pedestrians over the River Thames linking the City of London at St Paul's Cathedral with the Tate Modern Gallery at Bankside: it has a span of 325 m (1056 ft)
  • misunderstandable — Capable of being misunderstood.
  • modeling language — modelling language
  • modular sb-prolog — Modular Prolog
  • modulo arithmetic — modular arithmetic
  • monkeygland sauce — a piquant sauce, made from tomatoes, ketchup, fruit chutney, garlic, spices, etc
  • most well studied — marked by or suggestive of conscious effort; not spontaneous or natural; affected: studied simplicity.
  • 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.
  • multidisciplinary — composed of or combining several usually separate branches of learning or fields of expertise: a multidisciplinary study of the 18th century.
  • multimedia system — multimedia
  • multitudinousness — The state or condition of being multitudinous.
  • 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.
  • muscle dysmorphia — a mental disorder primarily affecting males, characterized by obsessions about a perceived lack of muscularity, leading to compulsive exercising, use of anabolic steroids, etc. Compare body dysmorphic disorder.
  • 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
  • narrow-shouldered — having shoulders which do not extend very far from the neck; not broad-shouldered
  • 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).
  • 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.
  • not the full quid — mentally subnormal
  • 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
  • old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
  • old wives' summer — a period of fine, summerlike weather occurring in Europe in autumn.
  • out in left field — Baseball. the area of the outfield to the left of center field, as viewed from home plate. the position of the player covering this area.
  • out of this world — the earth or globe, considered as a planet.
  • period-revolution — a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
  • phumiphon aduldet — (Phumiphon Aduldet; Bhumibol Adulyadej) born 1927, king of Thailand since 1946.
  • physical pendulum — any apparatus consisting of a body of possibly irregular shape allowed to rotate freely about a horizontal axis on which it is pivoted (distinguished from simple pendulum).
  • piccadilly circus — a traffic circle and open square in W London, England: theater and amusement center.
  • pittsburg landing — a village in SW Tennessee, on the Tennessee River: battle of Shiloh in 1862.
  • plastics industry — the industry that makes plastics
  • plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
  • police procedural — a mystery novel, film, or television drama that deals realistically with police work.
  • postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
  • powder metallurgy — the art or science of manufacturing useful articles by compacting metal and other powders in a die, followed by sintering.
  • prelingually deaf — deaf from birth or having acquired deafness before learning to speak
  • pressure altitude — the altitude for a given pressure in a standard atmosphere, such as that registered by a pressure altimeter.
  • product liability — the responsibility of a manufacturer for injury or loss caused by its product.
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