W
      n 1: a heavy gray-white metallic element; the pure form is used
           mainly in electrical applications; it is found in
           several ores including wolframite and scheelite [syn: tungsten,
            wolfram, atomic number 74]
      2: the cardinal compass point that is a 270 degrees [syn: west,
          due west]
      3: a unit of power equal to 1 joule per second; the power
         dissipated by a current of 1 ampere flowing across a
         resistance of 1 ohm [syn: watt]
      4: the 23rd letter of the Roman alphabet [syn: double-u]