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1. The 23rd letter of the Roman alphabet
   - W, double-u

1. The cardinal compass point that is at 270 degrees
   - west, due west, westward
    
2. 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
   - watt
    
3. A heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite
   - tungsten, wolfram, atomic number 74
    
4. (physics) a short-lived charged elementary particle that mediates the weak force
   - W boson

Derived forms: Ws, ws

Type of: alphabetic character, cardinal compass point, gauge boson, letter, letter of the alphabet, metal, metallic element, power unit

Part of: H.P., horsepower, HP, iron manganese tungsten, kilowatt, kW, Latin alphabet, Roman alphabet, scheelite, wolframite

Encyclopedia: W, Here