17-letter words containing d, o, u, t, i

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.
multitudinousness — The state or condition of being multitudinous.
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).
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.
non-subordination — the act of placing in a lower rank or position: The refusal to allow women to be educated was part of society's subordination of women to men.
nonproductiveness — The quality of being nonproductive.
northern studfish — See under studfish.
not the full quid — mentally subnormal
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.
nursery education — education provided at a school for young children, usually from three to five years old
odds-on favourite — a person, team, horse, etc that is regarded as the most likely to win a competition
odour of sanctity — sanctimoniousness
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.
on the foundation — an endowment or legacy for the perpetual support of an institution such as a school or hospital
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 one's mind — (in a human or other conscious being) the element, part, substance, or process that reasons, thinks, feels, wills, perceives, judges, etc.: the processes of the human mind.
out of the window — dispensed with; disregarded
out of this world — the earth or globe, considered as a planet.
outside broadcast — An outside broadcast is a radio or television programme that is not recorded or filmed in a studio, but in another building or in the open air.
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.
periodic function — a function of a real or complex variable that is periodic.
photoconductivity — the increase in the electrical conductivity of a substance, often nonmetallic, caused by the absorption of electromagnetic radiation.
phumiphon aduldet — (Phumiphon Aduldet; Bhumibol Adulyadej) born 1927, king of Thailand since 1946.
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.
potassium bromide — a white, crystalline, water-soluble powder, KBr, having a bitter saline taste: used chiefly in the manufacture of photographic papers and plates, in engraving, and in medicine as a sedative.
potassium cyanide — a white, granular, water-soluble, poisonous powder, KCN, having a faint almondlike odor, used chiefly in metallurgy and photography.
prescription drug — medication available only on doctor's instruction
primary education — junior, elementary schooling
private education — education provided by a private individual or organization, rather than by the state or a public body
product liability — the responsibility of a manufacturer for injury or loss caused by its product.
production number — a specialty number or routine, usually performed by the entire cast consisting of musicians, singers, dancers, stars, etc., of a musical comedy, vaudeville show, or the like.
production string — A production string is the series of pipes through which the oil or gas is brought up from the reservoir.
production system — (programming) A production system consists of a collection of productions (rules), a working memory of facts and an algorithm, known as forward chaining, for producing new facts from old. A rule becomes eligible to "fire" when its conditions match some set of elements currently in working memory. A conflict resolution strategy determines which of several eligible rules (the conflict set) fires next. A condition is a list of symbols which represent constants, which must be matched exactly; variables which bind to the thing they match and "<> symbol" which matches a field not equal to symbol. Example production systems are OPS5, CLIPS, flex.
production values — the quality of a media production (such as a film) in regards to elements such as colours, quality, style, etc
pseudo-democratic — pertaining to or of the nature of democracy or a democracy.
pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
pseudo-humanistic — a person having a strong interest in or concern for human welfare, values, and dignity.
pseudo-moralistic — a person who teaches or inculcates morality.
pseudo-scientific — any of various methods, theories, or systems, as astrology, psychokinesis, or clairvoyance, considered as having no scientific basis.
psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
put in a word for — to make favourable mention of (someone); recommend
quadratic formula — the formula for determining theroots of a quadratic equation from its coefficients: .
quantity discount — When you receive a quantity discount from a store or supplier, you pay less because you have bought a large quantity of goods. Also known as bulk buying discount.
quattuordecillion — a cardinal number represented in the U.S. by 1 followed by 45 zeros, and in Great Britain by 1 followed by 84 zeros.
quick on the draw — having fast reflexes
recreation ground — an open space for public recreation, esp one in a town, with swings and slides, etc, for children
recreational drug — drug taken for pleasure
redistributionist — a person who believes in, advocates, or supports income redistribution.

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