"measured mile" meaning in English

{
  "forms": [
    {
      "form": "measured miles",
      "tags": [
        "plural"
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      "expansion": "measured mile (plural measured miles)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A length of one nautical mile, the limits of which have been accurately measured and are indicated by ranges ashore. It is used by ships to calibrate logs, revolution counters, etc. as well as to measure the ship's speed."
      ],
      "id": "en-measured_mile-en-noun-EjZlUtpX"
    }
  ],
  "word": "measured mile"
}

{
  "forms": [
    {
      "form": "measured miles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "measured mile (plural measured miles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      ],
      "glosses": [
        "A length of one nautical mile, the limits of which have been accurately measured and are indicated by ranges ashore. It is used by ships to calibrate logs, revolution counters, etc. as well as to measure the ship's speed."
      ]
    }
  ],
  "word": "measured mile"
}