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18-letter words containing a, n, u, m

  • incremental backup — (operating system)   A kind of backup that copies all files which have changed since the date of the previous backup. The first backup of a file system should include all files - a "full backup". Call this level 0. The next backup could also be a full level 0 backup but it is usually much quicker to do a level 1 backup which will include only those files which have changed since the level 0 backup. Together the level 0 and level 1 backups will include the latest version of every file. Level 1 backups can be made until, say, the backup tape is nearly full, after which we can switch to level 2. Each level includes those files which have changed since the last backup at a lower level. The more levels you use, the longer it will take to restore the latest version of a file (or all files) if you don't know when it was last modified. Compare differential backup.
  • industrial diamond — a small often synthetic diamond, valueless as a gemstone, used in cutting tools, abrasives, etc
  • information bureau — an office where you can go to get information
  • informatory double — a double intended to inform one's partner that one has a strong hand and to urge a bid regardless of the strength of his or her hand.
  • inner automorphism — an automorphism that maps an element x into an element of the form axa −1 where a −1 is the inverse of a.
  • inseam measurement — (in tailoring) the measurement on a pair of trousers or on a person of the inside leg from the crotch to the ankle
  • instruction manual — how-to, usage guide
  • instrument landing — an aircraft landing accomplished by use of gauges on the instrument panel and ground-based radio equipment, with limited reference to outside visual signals.
  • instrument station — station (def 14a).
  • insurance salesman — male: sells insurance
  • intercommunication — to communicate mutually, as people.
  • investment account — a bank account in which money is saved long-term to accrue interest
  • involuntary muscle — muscle: contracts involuntarily
  • jerusalem syndrome — a delusive condition affecting some visitors to Jerusalem in which the sufferer identifies with a major figure from his or her religious background
  • jimenez de quesada — Gonzalo [gawn-thah-law,, -sah-] /gɔnˈθɑ lɔ,, -ˈsɑ-/ (Show IPA), 1497?–1579, Spanish explorer and conqueror in South America.
  • justice department — the United States federal department for enforcing federal laws
  • komsomolsk-on-amur — city in SE Russia, on the Amur River: pop. 309,000
  • launching ceremony — a ceremony that celebrates the launch of a ship for the first time into the water
  • lay down your arms — If soldiers lay down their arms, they stop fighting and give up their weapons.
  • lean manufacturing — efficiency in the production of goods
  • literae humaniores — (at Oxford University) the faculty concerned with Greek and Latin literature, ancient history, and philosophy; classics
  • little namaqualand — an arid coastal region in the S part of Namibia, extending into the Cape of Good Hope province of the Republic of South Africa, divided by the Orange River into two regions, one in Namibia (Great Namaqualand) the other in South Africa (Little Namaqualand) inhabited by the Nama.
  • luminous emittance — luminous flux emitted per unit area.
  • maclaurin's series — an infinite sum giving the value of a function f(x) in terms of the derivatives of the function evaluated at zero: f(x) = f(0) + (f′(0)x)/1! + (f″(0)x2)/2! + …
  • magnesium arsenate — a white, water-insoluble powder, Mg 3 (AsO 4) 2 ⋅xH 2 O, used chiefly as an insecticide.
  • magnesium peroxide — a white, tasteless, water-insoluble powder, MgO 2 , used as an antiseptic and as an oxidizing and bleaching agent.
  • magnesium silicate — a white powder, 3MgSiO 3 ⋅5H 2 O, with variable hydration, insoluble in water or alcohol, used as a rubber filler, a bleaching agent, an odor absorbent, and in the manufacture of paints and resins.
  • magnesium stearate — Magnesium stearate is a salt that is often used as a diluent and lubricant in tablets and capsules.
  • magnetic induction — Also called magnetic flux density. a vector quantity used as a measure of a magnetic field. Symbol: B.
  • magnetic tape unit — a computer device that moves reels of magnetic tape past read-write heads so that data can be transferred to or from the computer
  • major tranquilizer — antipsychotic (def 2).
  • make one's excuses — to express one's regret over not being able to attend a social gathering, etc.
  • make up 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.
  • malicious wounding — the intentional violent wounding or injuring of someone
  • malpighian tubules — one of a group of long, slender excretory tubules at the anterior end of the hindgut in insects and other terrestrial arthropods.
  • management studies — the study of the technique, practice, or science of managing a company, business, etc
  • manufactured goods — products made by machine
  • manufacturing base — the manufacturing industries of an area or a country considered as a unit and a constituent part of the economy
  • many happy returns — When it is someone's birthday, people sometimes say 'Many happy returns' to them as a way of greeting them.
  • marine underwriter — an underwriter who specializes in marine insurance
  • market opportunity — a situation in which a company can meet an unsatisfied customer need before its competitors
  • marriage encounter — a meeting with a person or thing, especially a casual, unexpected, or brief meeting: Our running into each other was merely a chance encounter.
  • medium of exchange — anything generally accepted as representing a standard of value and exchangeable for goods or services.
  • melville peninsula — a peninsula in N Canada, SE of the Gulf of Boothia. 250 miles (405 km) long.
  • mercury delay line — (storage, history)   An archaic first-in first-out fixed time period data storage device using acoustic transducers to transmit data as waves in a trough or tube of mercury. EDSAC (Cambridge) and UNIVAC I used delay lines.
  • microencapsulation — the process of enclosing chemical substances in microcapsules.
  • microminiaturizing — Present participle of microminiaturize.
  • mineral supplement — a pill containing minerals that you take to improve your health
  • miniature pinscher — one of a German breed of toy dogs resembling a smaller version of the Doberman pinscher, having a flat skull, a smooth coat, erect ears, and a docked tail, bred originally as a watchdog.
  • minor tranquilizer — antianxiety drug.
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