"interfluvial" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "inter",
        "3": "fluvial"
      },
      "expansion": "inter- + fluvial",
      "name": "prefix"
    }
  ],
  "etymology_text": "inter- + fluvial",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "interfluvial (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with inter-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Between rivers or streams."
      ],
      "id": "en-interfluvial-en-adj-481PxRey",
      "links": [
        [
          "river",
          "river"
        ],
        [
          "stream",
          "stream"
        ]
      ],
      "related": [
        {
          "word": "interfluve"
        },
        {
          "alt": "from a feminine substantive form of the adjective μεσοποτάμιος (mesopotámios; ), from the Ancient Greek μέσος (mésos, ) + ποτᾰμός (potamós, ) + -ιος (-ios); see more detailed etymology there",
          "english": "between rivers; between; river",
          "word": "Mesopotamia"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "interfluvial"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "inter",
        "3": "fluvial"
      },
      "expansion": "inter- + fluvial",
      "name": "prefix"
    }
  ],
  "etymology_text": "inter- + fluvial",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "interfluvial (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "interfluve"
    },
    {
      "alt": "from a feminine substantive form of the adjective μεσοποτάμιος (mesopotámios; ), from the Ancient Greek μέσος (mésos, ) + ποτᾰμός (potamós, ) + -ιος (-ios); see more detailed etymology there",
      "english": "between rivers; between; river",
      "word": "Mesopotamia"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with inter-",
        "English uncomparable adjectives"
      ],
      "glosses": [
        "Between rivers or streams."
      ],
      "links": [
        [
          "river",
          "river"
        ],
        [
          "stream",
          "stream"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "interfluvial"
}