"butterfly mine" meaning in English

{
  "etymology_text": "From being a mine that has an appearance reminiscent of a butterfly.",
  "forms": [
    {
      "form": "butterfly mines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "butterfly mine (plural butterfly mines)",
      "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"
        }
      ],
      "glosses": [
        "A type of winged air-dispersed and air-dropped anti-personnel landmine, typically without metal parts, so undetectable by usual metal detectors for landmines; looking like a child's toy."
      ],
      "hypernyms": [
        {
          "word": "land mine"
        },
        {
          "word": "landmine"
        },
        {
          "word": "mine"
        }
      ],
      "id": "en-butterfly_mine-en-noun-5VJ-EWpw",
      "links": [
        [
          "landmine",
          "landmine#English"
        ]
      ],
      "synonyms": [
        {
          "word": "child killer"
        },
        {
          "word": "kid killer"
        },
        {
          "word": "pedal mine"
        }
      ]
    }
  ],
  "word": "butterfly mine"
}

{
  "etymology_text": "From being a mine that has an appearance reminiscent of a butterfly.",
  "forms": [
    {
      "form": "butterfly mines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "butterfly mine (plural butterfly mines)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "word": "land mine"
    },
    {
      "word": "landmine"
    },
    {
      "word": "mine"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "glosses": [
        "A type of winged air-dispersed and air-dropped anti-personnel landmine, typically without metal parts, so undetectable by usual metal detectors for landmines; looking like a child's toy."
      ],
      "links": [
        [
          "landmine",
          "landmine#English"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "child killer"
    },
    {
      "word": "kid killer"
    },
    {
      "word": "pedal mine"
    }
  ],
  "word": "butterfly mine"
}