"wave base" meaning in English

{
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    {
      "form": "wave bases",
      "tags": [
        "plural"
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      "expansion": "wave base (plural wave bases)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "langcode": "en",
          "name": "Geography",
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      "examples": [
        {
          "ref": "2022, Thomas Halliday, Otherlands, Penguin, published 2023, page 253:",
          "text": "Beneath the wave base, the floor of the seabed is flat, disturbed only by burrowers.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The lowest depth at which waves have an effect on the sediment of the sea bed."
      ],
      "id": "en-wave_base-en-noun-5RDCtYCW",
      "links": [
        [
          "geography",
          "geography"
        ],
        [
          "depth",
          "depth"
        ],
        [
          "wave",
          "wave"
        ],
        [
          "sea bed",
          "sea bed"
        ]
      ],
      "raw_glosses": [
        "(geography) The lowest depth at which waves have an effect on the sediment of the sea bed."
      ],
      "topics": [
        "geography",
        "natural-sciences"
      ],
      "wikipedia": [
        "wave base"
      ]
    }
  ],
  "word": "wave base"
}

{
  "forms": [
    {
      "form": "wave bases",
      "tags": [
        "plural"
      ]
    }
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  "pos": "noun",
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          "text": "Beneath the wave base, the floor of the seabed is flat, disturbed only by burrowers.",
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        }
      ],
      "glosses": [
        "The lowest depth at which waves have an effect on the sediment of the sea bed."
      ],
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          "depth",
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        "(geography) The lowest depth at which waves have an effect on the sediment of the sea bed."
      ],
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        "geography",
        "natural-sciences"
      ],
      "wikipedia": [
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}