"avion renifleur" meaning in French

{
  "forms": [
    {
      "form": "avions renifleurs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "avion renifleur m (plural avions renifleurs)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Aviation",
          "orig": "fr:Aviation",
          "parents": [
            "Aeronautics",
            "Transport",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "sniffer plane"
      ],
      "id": "en-avion_renifleur-fr-noun-P8mexGDK",
      "links": [
        [
          "sniffer plane",
          "sniffer plane"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/a.vjɔ̃ ʁ(ə).ni.flœʁ/"
    }
  ],
  "word": "avion renifleur"
}

{
  "forms": [
    {
      "form": "avions renifleurs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "avion renifleur m (plural avions renifleurs)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French countable nouns",
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French multiword terms",
        "French nouns",
        "French terms with IPA pronunciation",
        "Pages with 1 entry",
        "Pages with entries",
        "fr:Aviation"
      ],
      "glosses": [
        "sniffer plane"
      ],
      "links": [
        [
          "sniffer plane",
          "sniffer plane"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/a.vjɔ̃ ʁ(ə).ni.flœʁ/"
    }
  ],
  "word": "avion renifleur"
}