zone plate

English

Noun

zone plate (plural zone plates)

  1. A Fresnel zone plate.
    • 2012, ‘Twinkle, twinkle, little planet’, The Economist, 9 Jun 2012:
      And Fresnel's countryman, Laurent Koechlin, of the Midi-Pyrénées observatory, thinks zone plates are the way to find out if there is life on other planets.

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