"Mars rover" meaning in English

{
  "forms": [
    {
      "form": "Mars rovers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Mars rover (plural Mars rovers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "parents": [
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        },
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          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
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            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any of a number of small unmanned remote-controlled vehicles sent to the planet Mars to do scientific research."
      ],
      "id": "en-Mars_rover-en-noun-aOPZNgGj",
      "links": [
        [
          "planet",
          "planet"
        ],
        [
          "Mars",
          "Mars"
        ]
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "vehicle",
          "tags": [
            "masculine"
          ],
          "word": "Marsverkenner"
        },
        {
          "code": "ka",
          "lang": "Georgian",
          "roman": "marsmavali",
          "sense": "vehicle",
          "word": "მარსმავალი"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "vehicle",
          "tags": [
            "masculine"
          ],
          "word": "Mars-Rover"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "marsoxód",
          "sense": "vehicle",
          "tags": [
            "masculine"
          ],
          "word": "марсохо́д"
        },
        {
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "marsoxíd",
          "sense": "vehicle",
          "tags": [
            "masculine"
          ],
          "word": "марсохі́д"
        }
      ],
      "wikipedia": [
        "Mars rover"
      ]
    }
  ],
  "word": "Mars rover"
}

{
  "forms": [
    {
      "form": "Mars rovers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Mars rover (plural Mars rovers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Astronomy"
      ],
      "glosses": [
        "Any of a number of small unmanned remote-controlled vehicles sent to the planet Mars to do scientific research."
      ],
      "links": [
        [
          "planet",
          "planet"
        ],
        [
          "Mars",
          "Mars"
        ]
      ],
      "wikipedia": [
        "Mars rover"
      ]
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "vehicle",
      "tags": [
        "masculine"
      ],
      "word": "Marsverkenner"
    },
    {
      "code": "ka",
      "lang": "Georgian",
      "roman": "marsmavali",
      "sense": "vehicle",
      "word": "მარსმავალი"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "vehicle",
      "tags": [
        "masculine"
      ],
      "word": "Mars-Rover"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "marsoxód",
      "sense": "vehicle",
      "tags": [
        "masculine"
      ],
      "word": "марсохо́д"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "marsoxíd",
      "sense": "vehicle",
      "tags": [
        "masculine"
      ],
      "word": "марсохі́д"
    }
  ],
  "word": "Mars rover"
}