WordReference Random House Unabridged Dictionary of American English © 2025
ground′ wave′, 
  1. a radio wave that propagates on or near the earth's surface and is affected by the ground and the troposphere.
  • 1925–30

'ground wave' also found in these entries (note: many are not synonyms or translations):
Richter scale

Forum discussions with the word(s) "ground wave" in the title:


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