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  Alternating current \Al"ter*nat`ing cur"rent\ (Elec.)
     A current which periodically changes or reverses its
     direction of flow, especially an electric current that
     reverses direction sinusoidally, as is used for most domestic
     and industrial power requirements. Contrasted with direct
     curent.
  
     Syn: AC
          [Webster 1913 Suppl. +PJC]
  
     Note: The common household current is alternating.
           Alternating current is easier than direct current to
           transform to high voltage and back, making
           long-distance transmission more efficient.
           [PJC]

  electric current \electric current\, electrical current
  \electrical current\,
     the movement of electrically charged particles, atoms, or
     ions, through solids, liquids, gases, or free space; the term
     is usually used of relatively smooth movements of electric
     charge through conductors, whether constant or variable.
     Sudden movements of charge are usually referred to by other
     terms, such as spark or lightning or discharge. In
     metallic conductors the electric current is usually due to
     movement of electrons through the metal. The current is
     measured as the rate of movement of charge per unit time, and
     is counted in units of amperes. As a formal definition, the
     direction of movement of electric current is considered as
     the same as the direction of movement of positive charge, or
     in a direction opposite to the movement of negative charge.
     Electric current may move constantly in a single direction,
     called direct current (abbreviated DC), or may move
     alternately in one direction and then the opposite direction,
     called alternating current (abbreviated AC).
     [PJC]

  Alternating current \Al"ter*nat`ing cur"rent\ (Elec.)
     A current which periodically changes or reverses its
     direction of flow.

  alternating current
       n : an electric current that reverses direction sinusoidally;
           "In the US most household current is AC at 60 cycles per
           second" [syn: AC] [ant: direct current]

  alternating current
     alt.
     (lb en physics) An electric current in which the direction of flow of
  the electrons reverses periodically.
     n.
     (lb en physics) An electric current in which the direction of flow of
  the electrons reverses periodically.

  alternating current
     alt.
     (lb en physics) An electric current in which the direction of flow of
  the electrons reverses periodically.
     n.
     (lb en physics) An electric current in which the direction of flow of
  the electrons reverses periodically.

  alternating current
     alt.
     (lb en physics) An electric current in which the direction of flow of
  the electrons reverses periodically.
     n.
     (lb en physics) An electric current in which the direction of flow of
  the electrons reverses periodically.

  alternating current
     alt.
     (lb en physics) An electric current in which the direction of flow of
  the electrons reverses periodically.
     n.
     (lb en physics) An electric current in which the direction of flow of
  the electrons reverses periodically.

  alternating current
     Englanti n.
     vaihtovirta

  alternating current
     Engelska n.
     växelström

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ 
  проме́нлив ток
  electric current that reverses direction periodically

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ 
  střídavý proud

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ (AC /ˌeɪsˈiː/)
  Wechselstrom  [electr.] WS,  /dˌʌbəljˌuːˈɛs/
   see: The machine runs on AC.
  

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/
  
  εναλλασσόμενο ρεύμα

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ 
  vaihtovirta
  electric current that reverses direction periodically

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ 
  1. प्रत्यावर्ति धारा
        "Alternating current is indicated by the abbreviation ‘AC'."

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/
  izmjenična struja

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/
  váltakozó áram

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ 
  arus bolak-balik
  electric current that reverses direction periodically

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ 
  交流, 交流電流
  electric current that reverses direction periodically

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ 
  vekselstrøm
  electric current that reverses direction periodically

  alternating current /ˈɔːltənˌeɪtɪŋ kˈʌɹənt/ 
  växelström
  electric current that reverses direction periodically

  37 Moby Thesaurus words for "alternating current":
     AC, DC, absorption current, active current, conduction current,
     convection current, cycle, delta current,
     dielectric displacement current, direct current,
     displacement current, eddy current, electric current,
     electric stream, emission current, exciting current,
     free alternating current, galvanic current, high-frequency current,
     idle current, induced current, induction current,
     ionization current, juice, low-frequency current,
     magnetizing current, multiphase current, pulsating direct current,
     reactive current, rotary current, single-phase alternating current,
     stray current, thermionic current, thermoelectric current,
     three-phase alternating current, voltaic current, watt current
  
  

     交流电