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18-letter words containing a, c, i, u, l, r

  • 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.
  • indolebutyric acid — a white or yellowish, crystalline, water-insoluble powder, C 12 H 13 O 2 N, a plant hormone similar to indoleacetic acid and used for the same purposes.
  • inductive relation — A relation R between domains D and E is inductive if for all chains d1 .. dn in D and e1 .. en in E,
  • industrial vehicle — a vehicle designed for use in industry
  • instruction manual — how-to, usage guide
  • insurance salesman — male: sells insurance
  • intercartilaginous — (anatomy) Within cartilage.
  • involuntary muscle — muscle: contracts involuntarily
  • launching ceremony — a ceremony that celebrates the launch of a ship for the first time into the water
  • lean manufacturing — efficiency in the production of goods
  • leave in the lurch — a situation at the close of various games in which the loser scores nothing or is far behind the opponent.
  • lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
  • liqueur chocolates — chocolates containing liqueur
  • louisiana purchase — a treaty signed with France in 1803 by which the U.S. purchased for $15,000,000 the land extending from the Mississippi River to the Rocky Mountains and from Canada to the Gulf of Mexico.
  • 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! + …
  • 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.
  • mergui archipelago — a group of over 200 islands in the Andaman Sea, off the Tenasserim coast of S Myanmar: mountainous and forested
  • microencapsulation — the process of enclosing chemical substances in microcapsules.
  • modular arithmetic — arithmetic in which numbers that are congruent modulo a given number are treated as the same. Compare congruence (def 2), modulo, modulus (def 2b).
  • molecular genetics — a subdivision of genetics concerned with the structure and function of genes at the molecular level.
  • molecular medicine — the study of disease or injury at the molecular or cellular level.
  • mordovian republic — a constituent republic of W central Russia, in the middle Volga basin. Capital: Saransk. Pop: 888 700 (2002). Area: 26 200 sq km (10 110 sq miles)
  • mucopolysaccharide — (formerly) glycosaminoglycan.
  • musical instrument — music
  • mutually recursive — recursion
  • national insurance — In Britain, national insurance is the state system of paying money to people who are ill, unemployed, or retired. It is financed by money that the government collects from people who work, or from their employers.
  • natural childbirth — childbirth involving little or no use of drugs or anesthesia and usually involving a program in which the mother is psychologically and physically prepared for the birth process.
  • natural convection — Natural convection is the loss of heat from a hot solid or liquid into air which is not artificially agitated.
  • natural resistance — natural immunity.
  • naval architecture — the science of designing ships and other waterborne craft.
  • neovascularization — the development of new blood vessels, especially in tissues where circulation has been impaired by trauma or disease.
  • neurophysiological — the branch of physiology dealing with the functions of the nervous system.
  • neuropsychological — Of or pertaining to neuropsychology, the relation or combination of brain and mind.
  • no-fault insurance — Also called no-fault insurance. a form of automobile insurance designed to enable the policyholder in case of an accident to collect a certain basic compensation promptly for economic loss from his or her own insurance company without determination of liability.
  • nocturnal emission — the release of semen during sleep, often during a sexual dream.
  • non-circumstantial — of pertaining to, or derived from circumstances: a circumstantial result.
  • nonstriated muscle — smooth muscle
  • nuclear capability — If a country has nuclear capability, it is able to produce nuclear power and usually nuclear weapons.
  • numerical analysis — the branch of mathematics dealing with methods for obtaining approximate numerical solutions of mathematical problems.
  • numerical aperture — a measure of the resolving power of a microscope, equal to the index of refraction of the medium in which the object is placed multiplied by the sine of the angle made with the axis by the most oblique ray entering the instrument, the resolving power increasing as the product increases. Abbreviation: N.A.
  • numerical identity — the relation that holds between two relata when they are the selfsame entity, that is, when the terms designating them have the same reference
  • numerical taxonomy — classification of organisms by a comparison of large numbers of observable characteristics that are given equal value instead of being weighted according to possible evolutionary significance.
  • nursery facilities — places where young children are looked after
  • occupational group — An occupational group is a category used by insurance companies to classify jobs according to how hazardous they are.
  • on delicate ground — in a situation requiring tact
  • optical soundtrack — the final soundtrack on a motion picture, which appears as a band of black and white serrations along a strip of film to the left of the composite print. Light is shined through the serrations and is converted to audible sound.
  • out of circulation — If someone is out of circulation, they do not appear in public or at social gatherings for a period of time. You can also say that someone is out of circulation when they are in prison.
  • pacinian corpuscle — (sometimes lowercase) a microscopic, onionlike body consisting of layers of connective tissue wrapped around a nerve ending, located in the deep layers of skin, tendons, etc., and functioning as a sensory receptor of pressure and vibration.
  • parallel computing — parallel processing
  • parallel reduction — A form of applicative order reduction in which all redexes in an expression are reduced simultaneously. Variants include parallel outermost reduction and lenient reduction. See normal order reduction.
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