"black slug" meaning in English

{
  "forms": [
    {
      "form": "black slugs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "black slug (plural black slugs)",
      "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"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Norwegian Nynorsk translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Gastropods",
          "orig": "en:Gastropods",
          "parents": [
            "Mollusks",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An omnivorous slug found in Europe and the Pacific Northwest, Arion ater, not always black, despite the name."
      ],
      "id": "en-black_slug-en-noun-A1ZkOXJE",
      "links": [
        [
          "omnivorous",
          "omnivorous"
        ],
        [
          "slug",
          "slug"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Arion ater",
          "word": "mustasiruetana"
        },
        {
          "code": "nn",
          "lang": "Norwegian Nynorsk",
          "sense": "Arion ater",
          "tags": [
            "masculine"
          ],
          "word": "svartskogsnigel"
        },
        {
          "code": "nn",
          "lang": "Norwegian Nynorsk",
          "sense": "Arion ater",
          "tags": [
            "feminine"
          ],
          "word": "geitsleip"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "Arion ater",
          "tags": [
            "common-gender"
          ],
          "word": "svart skogssnigel"
        }
      ]
    }
  ],
  "word": "black slug"
}

{
  "forms": [
    {
      "form": "black slugs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "black slug (plural black slugs)",
      "name": "en-noun"
    }
  ],
  "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",
        "Entries using missing taxonomic name (species)",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with Norwegian Nynorsk translations",
        "Terms with Swedish translations",
        "en:Gastropods"
      ],
      "glosses": [
        "An omnivorous slug found in Europe and the Pacific Northwest, Arion ater, not always black, despite the name."
      ],
      "links": [
        [
          "omnivorous",
          "omnivorous"
        ],
        [
          "slug",
          "slug"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Arion ater",
      "word": "mustasiruetana"
    },
    {
      "code": "nn",
      "lang": "Norwegian Nynorsk",
      "sense": "Arion ater",
      "tags": [
        "masculine"
      ],
      "word": "svartskogsnigel"
    },
    {
      "code": "nn",
      "lang": "Norwegian Nynorsk",
      "sense": "Arion ater",
      "tags": [
        "feminine"
      ],
      "word": "geitsleip"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "Arion ater",
      "tags": [
        "common-gender"
      ],
      "word": "svart skogssnigel"
    }
  ],
  "word": "black slug"
}