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  1. Oxford American Dictionary

    circular polarization

    • IPA[ˈsərkyələr ˌpōlərəˈzāSHən]
    • n.
      polarization of an electromagnetic wave in which either the electric or the magnetic vector executes a circle perpendicular to the path of propagation with a frequency equal to that of the wave. It is frequently used in satellite communications.

    • noun: circular polarization