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21-letter words containing a, r, c, m, i

  • madagascar aquamarine — a form of blue beryl from Madagascar, used as a gemstone
  • madagascar periwinkle — a plant, Catharanthus roseus (or Vinca rosea), cultivated for its glossy foliage and pink or white flowers.
  • magnesium trisilicate — a white, fine, odorless and tasteless powder, Mg 2 O 8 Si 3 ⋅nH 2 O, used industrially to absorb odors and decolorize and pharmaceutically as an antacid.
  • magnetic permeability — permeability (def 2).
  • magneto-optical drive — magneto-optical disk
  • magnetocaloric effect — an increase or decrease of the temperature of a thermally isolated magnetic substance accompanying an increase or decrease in the intensity of a magnetic field.
  • magnificent riflebird — a bird of paradise, Craspedophora magnifica
  • main-topsail schooner — a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark.
  • manufacturing company — a company that manufactures goods
  • manufacturing process — chain of production
  • mariage de convenance — marriage entered into for a personal or family advantage, as for social, political, or economic reasons, usually without love and sometimes without the expectation of sexual relations.
  • marketable securities — Marketable securities are securities that can easily be sold quickly on the open market.
  • mayor of casterbridge — a novel (1886) by Thomas Hardy.
  • mean time to recovery — (specification)   (MTTR) The average time that a device will take to recover from a non-terminal failure. Examples of such devices range from self-resetting fuses (where the MTTR would be very short, probably seconds), up to whole systems which have to be replaced. The MTTR would usually be part of a maintenance contract, where the user would pay more for a system whose MTTR was 24 hours, than for one of, say, 7 days. This means the supplier is guaranteeing to have the system up and running again within 24 hours (or 7 days) of being notified of the failure. Some devices have a MTTR of zero, which means that they have redundant components which can take over the instant the primary one fails, see RAID for example. See also Mean Time Between Failures.
  • mechanical instrument — a musical instrument, such as a barrel organ or music box, that plays a preselected piece of music by mechanical means
  • mechanical metallurgy — the branch of metallurgy dealing with the response of metals to applied forces.
  • mechanical solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
  • mechanical weathering — any of the various weathering processes that cause physical disintegration of exposed rock without any change in the chemical composition of the rock: Collision between rock surfaces can cause mechanical weathering.
  • medical jurisprudence — forensic medicine.
  • medical social worker — a person who works in a hospital and is responsible for offering counselling to patients and their families and ensuring that discharged patients will receive appropriate care in the community
  • mediterranean climate — a climate characterized by warm, dry summers and rainy winters
  • medium access control — Media Access Control
  • metabotropic receptor — an indirect receptor which initiates an intracellular biochemical cascade after it is triggered by an agonistic ligand
  • meter-kilogram-second — of or relating to the system of units in which the meter, kilogram, and second are the principal units of length, mass, and time. Abbreviation: mks, MKS.
  • metropolitan district — any of the districts making up the metropolitan counties of England: since 1986 they have functioned as unitary authorities, forming the sole principal tier of local government. Each metropolitan district has an elected council responsible for education, social services, etc
  • microsoft corporation — (company)   The biggest supplier of operating systems and other software for IBM PC compatibles. Software products include MS-DOS, Microsoft Windows, Windows NT, Microsoft Access, LAN Manager, MS Client, SQL Server, Open Data Base Connectivity (ODBC), MS Mail, and SNA Server for Windows NT. Microsoft was founded as "Micro-soft" in 1975 by Bill Gates (now CEO) and his high school pal Paul Allen. Their first product was a version of BASIC for the new Altair computer [which one?]. In 1980, IBM chose Microsoft to supply the operating system for the IBM PC. On the UK television program "The Net" in May 1994, Bill Gates said he was betting his company on the information highway". Quarterly sales $1293M, profits $362M (Aug 1994).
  • microware corporation — Authors of OS-9. Address: Des Moines, Iowa, USA.
  • modern apprenticeship — an arrangement that allows a school leaver to gain vocational qualifications while being trained in a job
  • monochloroacetic acid — chloroacetic acid.
  • motion-picture camera — a sequence of consecutive pictures of objects photographed in motion by a specially designed camera (motion-picture camera) and thrown on a screen by a projector (motion-picture projector) in such rapid succession as to give the illusion of natural movement.
  • motivational research — the application of the knowledge and techniques of the social sciences, especially psychology and sociology, to understanding consumer attitudes and behavior: used as a guide in advertising and marketing.
  • mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
  • mucopolysaccharidosis — Any of a group of metabolic disorders caused by the absence or malfunction of lysosomal enzymes needed to break down glycosaminoglycans.
  • multichannel analyser — an electronic instrument, such as a pulse height analyser, that splits an input waveform into a large number of channels in accordance with a particular parameter of the input
  • multilayer perceptron — A network composed of more than one layer of neurons, with some or all of the outputs of each layer connected to one or more of the inputs of another layer. The first layer is called the input layer, the last one is the output layer, and in between there may be one or more hidden layers.
  • multiplication factor — the ratio of the number of neutrons in a generation to the number of neutrons in the previous generation: when the multiplication factor is equal to or greater than one, a chain reaction is possible
  • municipal corporation — a city, town, village, etc., that operates under a corporate charter granted by the state.
  • myocardial infarction — heart attack. Abbreviation: MI.
  • non-repeating decimal — a decimal representation of any irrational number, having the property that no sequence of digits is repeated ad infinitum.
  • nonexamination course — a course of study in which there are no examinations
  • olympic national park — a national park in NW Washington. 1323 sq. mi. (3425 sq. km).
  • operational semantics — (theory)   A set of rules specifying how the state of an actual or hypothetical computer changes while executing a program. The overall state is typically divided into a number of components, e.g. stack, heap, registers etc. Each rule specifies certain preconditions on the contents of some components and their new contents after the application of the rule. It is similar in spirit to the notion of a Turing machine, in which actions are precisely described in a mathematical way. Compuare axiomatic semantics, denotational semantics.
  • pacific standard time — See under standard time.
  • parametric statistics — the branch of statistics concerned with data measurable on interval or ratio scales, so that arithmetic operations are applicable to them, enabling parameters such as the mean of the distribution to be defined
  • partial reinforcement — the process of randomly rewarding an organism for making a response on only some of the occasions it makes it
  • performance appraisal — the assessment, at regular intervals, of an employee's performance at work
  • performance indicator — a quantitative or qualitative measurement, or any other criterion, by which the performance, efficiency, achievement, etc of a person or organization can be assessed, often by comparison with an agreed standard or target
  • performance-enhancing — noting or relating to a drug or other substance used to improve one's performance in a sport or other activity requiring strength, stamina, etc.: The use of performance-enhancing steroids by athletes is banned.
  • personalized medicine — an approach to the practice of medicine that uses information about a patient’s unique genetic makeup and environment to customize the patient's medical care to fit his or her individual requirements.
  • pick someone's brains — to obtain information or ideas from someone
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