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17-letter words containing d, e, a, i, r

  • majority decision — a decision supported by more than half the people involved
  • make a difference — have a significant impact
  • make inroads into — to start to use up the supply of something
  • man's best friend — a dog, especially as a pet.
  • managing director — manager who oversees a project
  • marais des cygnes — a river in E central Kansas and W Missouri, flowing SE to the Osage River. 150 miles (241 km) long.
  • mare fecunditatis — (Sea of Fertility) a dark plain in the fourth quadrant and extending into the first quadrant of the face of the moon: about 160,000 sq. mi. (415,000 sq. km).
  • marquesas islands — a group of volcanic islands in the S Pacific, in French Polynesia. Pop: 8712 (2002). Area: 1287 sq km (497 sq miles)
  • marriage guidance — counselling for married couples
  • martha's vineyard — an island off SE Massachusetts: summer resort. About 100 sq. mi. (259 sq. km).
  • mascarene islands — a group of islands in the Indian Ocean, E of Madagascar, including Mauritius, Reunion, and Rodrigues.
  • mass merchandiser — a retailer or retail store that seeks to sell large quantities of goods quickly through such means as discounting, customer self-service, or unadorned display and packaging, as in a warehouse.
  • mean-spiritedness — the quality of being mean-spirited
  • mechanical digger — a machine used for excavation
  • medical insurance — a type of insurance intended to cover possible future medical expenses
  • medical librarian — a person who works in a library of medical information kept for reference in a teaching hospital
  • medical marijuana — marijuana prescribed by a doctor and used as a medicine: medical marijuana in pill form or oral spray.
  • medical procedure — A medical procedure is a medical treatment or operation.
  • medicochirurgical — pertaining to medicine and surgery.
  • mediterranean sea — a sea surrounded by Africa, Europe, and Asia. 2400 miles (3865 km) long; 1,145,000 sq. mi. (2,965,550 sq. km); greatest known depth 14,436 feet (4400 meters).
  • ménière's disease — a disease of the labyrinth of the ear, characterized by deafness, ringing in the ears, dizziness, and nausea.
  • mentally impaired — with reduced or weakened mental capacity
  • metaperiodic acid — the crystalline compound HIO4, an oxyacid of iodine
  • microdermabrasion — A cosmetic treatment in which the face is sprayed with exfoliant crystals to remove dead epidermal cells.
  • microencapsulated — Encapsulated using microencapsulation.
  • microfiche reader — a machine that displays on a screen a magnified image of a microfiche
  • microminiaturized — Simple past tense and past participle of microminiaturize.
  • 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
  • middle low german — Low German of the period c1100–c1500.
  • middle-age spread — an increase in bulk, especially in the waist and buttocks, associated with the onset of middle age and the body's decreasing ability to metabolize calories efficiently.
  • midmorning prayer — the third of the seven canonical hours; terce
  • midsummer madness — a temporary lapse into foolishness, senseless behavior, folly, etc., especially during the summer: His plan to become a beachcomber is midsummer madness.
  • mies van der rohe — Ludwig [luhd-wig] /ˈlʌd wɪg/ (Show IPA), 1886–1969, U.S. architect, born in Germany.
  • mileage indicator — a device on a vehicle such as a car, plane, etc which indicates the number of miles travelled
  • minas de riotinto — a town in SW Spain: copper mines.
  • 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.
  • misunderstandable — Capable of being misunderstood.
  • misunderstandings — Plural form of misunderstanding.
  • modulo arithmetic — modular arithmetic
  • 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.
  • 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
  • naked singularity — an infinitely dense point mass without a surrounding black hole
  • 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.
  • niger-kordofanian — a language family comprising Niger-Congo and Kordofanian.
  • nine days' wonder — an event or thing that arouses considerable but short-lived interest or excitement.
  • ninety-day wonder — an officer commissioned in a branch of the armed forces after an unusually short training period, especially after a three-months officers' training course during World War II.
  • non-biodegradable — capable of decaying through the action of living organisms: biodegradable paper; biodegradable detergent.
  • non-consideration — the act of considering; careful thought; meditation; deliberation: I will give your project full consideration.
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