wave base

English

Noun

wave base (uncountable)

  1. (geography) The lowest depth at which waves have an effect on the sediment of the sea bed. [from 19th c.]
    • 2022, Thomas Halliday, Otherlands, Penguin, published 2023, page 253:
      Beneath the wave base, the floor of the seabed is flat, disturbed only by burrowers.
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