"sniffer plane" meaning in English

{
  "forms": [
    {
      "form": "sniffer planes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sniffer plane (plural sniffer planes)",
      "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"
          ],
          "source": "w"
        },
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          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
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        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
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        },
        {
          "kind": "other",
          "name": "Pages with entries",
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        },
        {
          "kind": "other",
          "name": "Terms with Dutch translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "An airplane that supposedly could detect oil fields underground."
      ],
      "id": "en-sniffer_plane-en-noun-AzGoVDak",
      "links": [
        [
          "airplane",
          "airplane"
        ],
        [
          "oil field",
          "oil field"
        ]
      ],
      "related": [
        {
          "word": "The Great Oil Sniffer Hoax"
        }
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "airplane for oil detection",
          "tags": [
            "neuter"
          ],
          "word": "snuffelvliegtuig"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "airplane for oil detection",
          "tags": [
            "masculine"
          ],
          "word": "avion renifleur"
        }
      ]
    }
  ],
  "word": "sniffer plane"
}

{
  "forms": [
    {
      "form": "sniffer planes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sniffer plane (plural sniffer planes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "The Great Oil Sniffer Hoax"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Dutch translations",
        "Terms with French translations"
      ],
      "glosses": [
        "An airplane that supposedly could detect oil fields underground."
      ],
      "links": [
        [
          "airplane",
          "airplane"
        ],
        [
          "oil field",
          "oil field"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "airplane for oil detection",
      "tags": [
        "neuter"
      ],
      "word": "snuffelvliegtuig"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "airplane for oil detection",
      "tags": [
        "masculine"
      ],
      "word": "avion renifleur"
    }
  ],
  "word": "sniffer plane"
}