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English Dictionary: unit by the DICT Development Group
2 results for unit
From WordNet (r) 3.0 (2006) [wn]:
  1. any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of currency"; "a unit of wheat is a bushel"; "change per unit volume"
    Synonym(s): unit of measurement, unit
  2. an individual or group or structure or other entity regarded as a structural or functional constituent of a whole; "the reduced the number of units and installations"; "the word is a basic linguistic unit"
  3. an organization regarded as part of a larger social group; "the coach said the offensive unit did a good job"; "after the battle the soldier had trouble rejoining his unit"
    Synonym(s): unit, social unit
  4. a single undivided whole; "an idea is not a unit that can be moved from one brain to another"
  5. a single undivided natural thing occurring in the composition of something else; "units of nucleic acids"
    Synonym(s): unit, building block
  6. an assemblage of parts that is regarded as a single entity; "how big is that part compared to the whole?"; "the team is a unit"
    Synonym(s): whole, unit
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Unit \U"nit\, n. [Abbrev. from unity.]
      1. A single thing or person.
      2. (Arith.) The least whole number; one.
                     Units are the integral parts of any large number.
                                                                              --I. Watts.
      3. A gold coin of the reign of James I., of the value of
            twenty shillings. --Camden.
      4. Any determinate amount or quantity (as of length, time,
            heat, value) adopted as a standard of measurement for
            other amounts or quantities of the same kind.
      5. (Math.) A single thing, as a magnitude or number, regarded
            as an undivided whole.
      {Abstract unit}, the unit of numeration; one taken in the
            abstract; the number represented by 1. The term is used in
            distinction from concrete, or determinate, unit, that is,
            a unit in which the kind of thing is expressed; a unit of
            measure or value; as 1 foot, 1 dollar, 1 pound, and the
      {Complex unit} (Theory of Numbers), an imaginary number of
            the form a + broot{-1}, when a^{2} + b^{2} = 1.
      {Duodecimal unit}, a unit in the scale of numbers increasing
            or decreasing by twelves.
      {Fractional unit}, the unit of a fraction; the reciprocal of
            the denominator; thus, [frac14] is the unit of the
            fraction [frac34].
      {Integral unit}, the unit of integral numbers, or 1.
      {Physical unit}, a value or magnitude conventionally adopted
            as a unit or standard in physical measurements. The
            various physical units are usually based on given units of
            length, mass, and time, and on the density or other
            properties of some substance, for example, water. See
            {Dyne}, {Erg}, {Farad}, {Ohm}, {Poundal}, etc.
      {Unit deme} (Biol.), a unit of the inferior order or orders
            of individuality.
      {Unit jar} (Elec.), a small, insulated Leyden jar, placed
            between the electrical machine and a larger jar or
            battery, so as to announce, by its repeated discharges,
            the amount of electricity passed into the larger jar.
      {Unit of heat} (Physics), a determinate quantity of heat
            adopted as a unit of measure; a thermal unit (see under
            {Thermal}). Water is the substance generally employed, the
            unit being one gram or one pound, and the temperature
            interval one degree of the Centigrade or Fahrenheit scale.
            When referred to the gram, it is called the gram degree.
            The British unit of heat, or thermal unit, used by
            engineers in England and in the United States, is the
            quantity of heat necessary to raise one pound of pure
            water at and near its temperature of greatest density
            (39.1[deg] Fahr.) through one degree of the Fahrenheit
            scale. --Rankine.
      {Unit of illumination}, the light of a sperm candle burning
            120 grains per hour. Standard gas, burning at the rate of
            five cubic feet per hour, must have an illuminating power
            equal to that of fourteen such candles.
      {Unit of measure} (as of length, surface, volume, dry
            measure, liquid measure, money, weight, time, and the
            like), in general, a determinate quantity or magnitude of
            the kind designated, taken as a standard of comparison for
            others of the same kind, in assigning to them numerical
            values, as 1 foot, 1 yard, 1 mile, 1 square foot, 1 square
            yard, 1 cubic foot, 1 peck, 1 bushel, 1 gallon, 1 cent, 1
            ounce, 1 pound, 1 hour, and the like; more specifically,
            the fundamental unit adopted in any system of weights,
            measures, or money, by which its several denominations are
            regulated, and which is itself defined by comparison with
            some known magnitude, either natural or empirical, as, in
            the United States, the dollar for money, the pound
            avoirdupois for weight, the yard for length, the gallon of
            8.3389 pounds avoirdupois of water at 39.8[deg] Fahr.
            (about 231 cubic inches) for liquid measure, etc.; in
            Great Britain, the pound sterling, the pound troy, the
            yard, or [frac1x108719] part of the length of a second's
            pendulum at London, the gallon of 277.274 cubic inches,
            etc.; in the metric system, the meter, the liter, the
            gram, etc.
      {Unit of power}. (Mach.) See {Horse power}.
      {Unit of resistance}. (Elec.) See {Resistance}, n., 4, and
      {Unit of work} (Physics), the amount of work done by a unit
            force acting through a unit distance, or the amount
            required to lift a unit weight through a unit distance
            against gravitation. See {Erg}, {Foot Pound},
      {Unit stress} (Mech. Physics), stress per unit of area;
            intensity of stress. It is expressed in ounces, pounds,
            tons, etc., per square inch, square foot, or square yard,
            etc., or in atmospheres, or inches of mercury or water, or
            the like.
No guarantee of accuracy or completeness!
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