19-letter words containing m, e, t, a, c, n
- magnetic tape drive — (storage) (Or "tape drive") A peripheral device that reads and writes magnetic tape.
- magnetohydrodynamic — Of or pertaining to magnetohydrodynamics.
- magnetomotive force — a scalar quantity that is a measure of the sources of magnetic flux in a magnetic circuit. Abbreviation: mmf.
- major seventh chord — a chord much used in modern music, esp jazz and pop, consisting of a major triad with an added major seventh above the root
- male chauvinist pig — male chauvinist.
- malleable cast iron — white cast iron that has been malleablized.
- managed competition — a strategy for healthcare delivery whereby costs are reduced by fostering competition between providers of managed-care contracts for large employers.
- manchester autocode — (language, history) The predecessor of Mercury Autocode.
- manchester encoding — (communications, protocol) A method of transmitting bits which enables the receiver to easily synchronise with the sender. A simple way of signalling bits might be to transmit a high voltage for some period for a 1-bit and a low voltage for a 0 bit: Bits Sent: 1 1 0 0 Signal: High ___ Low |___ Time: -> . . . . . However, when several identical bits are sent in succession, this provides no information to the receiver about when each bit starts and stops. Manchester encoding splits each bit period into two, and ensures that there is always a transition between the signal levels in the middle of each bit. This allows the receiver to synchronise with the sender. In normal Manchester encoding, a 1-bit is transmitted with a high voltage in the first period, and a low voltage in the second, and vice verse for the 0 bit: Bits Sent: 1 1 0 0 Signal: High Low || |_| || Time: -> . ' . ' . ' . ' . In Differential Manchester encoding, a 1-bit is indicated by making the first half of the signal equal to the last half of the previous bit's signal and a 0-bit is indicated by making the first half of the signal opposite to the last half of the previous bit's signal. That is, a zero bit is indicated by a transition at the beginning of the bit. Like normal Manchester encoding, there is always a transition in the middle of the transmission of the bit. Differential Manchester Encoding Bits Sent: 1 1 0 0 Signal: High __ Low |_| || || Time: -> . ' . ' . ' . ' . With each bit period half as long, twice as much bandwidth is required when using either of the Manchester encoding schemes.
- manned space flight — space travel in vehicles with a human crew
- maratha confederacy — a loose league of states in central and western India, c1750–1818.
- mary mcleod bethune — Mary McLeod [muh-kloud] /məˈklaʊd/ (Show IPA), 1875–1955, U.S. educator and civil-rights leader.
- mary wollstonecraft — Mary (Mary Wollstonecraft Godwin) 1759–97, English author and feminist (mother of Mary Shelley).
- maternity allowance — (in the British National Insurance scheme) a payment made to a pregnant woman who usually works but does not qualify for statutory maternity pay, normally from 11 weeks before confinement for a period of 18 weeks
- mccarran-walter act — the Immigration and Nationality Act enacted by the U.S. Congress in 1952 that removed racial barriers to immigration and empowered the Department of Justice to deport immigrants or naturalized citizens engaging in subversive activities.
- means of production — resources: equipment, workers
- medical examination — physical examination
- megabits per second — (unit) (Mbps, Mb/s) Millions of bits per second. A unit of data rate. 1 Mb/s = 1,000,000 bits per second (not 1,048,576). E.g. Ethernet can carry 10 Mbps.
- meningoencephalitic — Relating to meningoencephalitis.
- meningoencephalitis — Inflammation of the membranes of the brain and the adjoining cerebral tissue.
- mercator projection — a conformal projection on which any rhumb line is represented as a straight line, used chiefly in navigation, though the scale varies with latitude and areal size and the shapes of large areas are greatly distorted.
- meter-candle-second — a unit of light-exposure equivalent to one lux for one second.
- metropolitan county — (in England) any of the six conurbations established as administrative units in the new local government system in 1974; the metropolitan county councils were abolished in 1986
- mexican bean beetle — a ladybird beetle, Epilachna varivestis, introduced into the U.S. from Mexico, that feeds on the foliage of the bean plant.
- microelectronically — by microcircuits
- miniature schnauzer — one of a German breed of sturdily built terriers resembling a smaller version of the standard schnauzer, having a wiry, pepper-and-salt, black, or black-and-silver coat, a rectangular head, bushy whiskers, and a docked tail, and originally developed as a farm dog but now raised primarily as a pet.
- miscellaneous items — various kinds of thing, esp small purchases
- mischaracterization — The act of characterizing something in an inaccurate or misleading way.
- molecular astronomy — the branch of astronomy dealing with the study of molecules in space.
- moses-in-the-cradle — a plant, Rhoeo spathacea, native to the West Indies and Central America, having leaves with purple undersides and white flowers enclosed in a boat-shaped envelope formed by two bracts.
- motivation 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.
- multiplexor channel — (MPX) mainframe terminology for a slow peripheral device connection, e.g. for a printer, operator console, or card reader.
- music to one's ears — something that is very pleasant to hear
- national serviceman — a soldier undertaking compulsory military service
- negative income tax — a system of income subsidy through which persons having less than a certain annual income receive money from the government rather than pay taxes to it.
- newtonian mechanics — the branch of mechanics that is based on Newton's laws of motion and that is applicable to systems that are so large that Planck's constant can be regarded as negligibly small (distinguished from quantum mechanics).
- non-contemporaneous — living or occurring during the same period of time; contemporary.
- nonmaterial culture — the aggregate of values, mores, norms, etc., of a society; the ideational structure of a culture that provides the values and meanings by which it functions.
- not worth a crumpet — utterly worthless
- nuclear disarmament — the gradual reduction and eventual elimination of all nuclear weapons in the world
- on an empty stomach — If you do something on an empty stomach, you do it without having eaten.
- outplacement agency — an agency that provides counselling and careers advice, esp to redundant executives, which is paid for by their previous employer
- parametric equation — one of two or more equations expressing the location of a point on a curve or surface by determining each coordinate separately.
- particle kinematics — Particle kinematics is the study of the movement of particles, without considering the forces that cause this movement.
- penecontemporaneous — formed during or shortly after the formation of the containing rock stratum: penecontemporaneous minerals.
- performance anxiety — the stage fright that a person feels when they are about to perform (a play, piece of music etc) in front of an audience
- performance targets — the expected or predicted success level of an individual, company or organization
- permanent secretary — the senior civil servant responsible for running a government ministry
- phacoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
- phakoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.