lobe
  • noun a rounded part of a divided leaf
  • Area of radio emission observed far to one side of the optically visible part of some galaxies
  • Within an antenna pattern, a three-dimensional section in which radiation and/or reception is increased. Also called antenna lobe, and when referring specifically to radiation also known as radiation lobe.
  • Within a directional pattern of a transducer, a three-dimensional section in which radiation and/or reception is increased. For instance, such a lobe in the radiation pattern of a speaker.

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