"knotted wrack" meaning in English

{
  "forms": [
    {
      "form": "knotted wracks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "knotted wrack (plural knotted wracks)",
      "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": "lifeform",
          "langcode": "en",
          "name": "Brown algae",
          "orig": "en:Brown algae",
          "parents": [
            "Algae",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A species of brown algae, Ascophyllum nodosum; a common seaweed of the northern Atlantic Ocean."
      ],
      "id": "en-knotted_wrack-en-noun-0Zxye2Er",
      "links": [
        [
          "brown alga",
          "brown alga"
        ],
        [
          "Ascophyllum nodosum",
          "Ascophyllum nodosum#Translingual"
        ],
        [
          "seaweed",
          "seaweed"
        ]
      ],
      "synonyms": [
        {
          "word": "rockweed"
        },
        {
          "word": "Norwegian kelp"
        },
        {
          "word": "knotted kelp"
        },
        {
          "word": "egg wrack"
        }
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Ascophyllum nodosum",
          "word": "solmulevä"
        },
        {
          "code": "gl",
          "lang": "Galician",
          "sense": "Ascophyllum nodosum",
          "tags": [
            "masculine"
          ],
          "word": "bocho"
        }
      ],
      "wikipedia": [
        "Ascophyllum"
      ]
    }
  ],
  "word": "knotted wrack"
}

{
  "forms": [
    {
      "form": "knotted wracks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "knotted wrack (plural knotted wracks)",
      "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",
        "en:Brown algae"
      ],
      "glosses": [
        "A species of brown algae, Ascophyllum nodosum; a common seaweed of the northern Atlantic Ocean."
      ],
      "links": [
        [
          "brown alga",
          "brown alga"
        ],
        [
          "Ascophyllum nodosum",
          "Ascophyllum nodosum#Translingual"
        ],
        [
          "seaweed",
          "seaweed"
        ]
      ],
      "wikipedia": [
        "Ascophyllum"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "rockweed"
    },
    {
      "word": "Norwegian kelp"
    },
    {
      "word": "knotted kelp"
    },
    {
      "word": "egg wrack"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Ascophyllum nodosum",
      "word": "solmulevä"
    },
    {
      "code": "gl",
      "lang": "Galician",
      "sense": "Ascophyllum nodosum",
      "tags": [
        "masculine"
      ],
      "word": "bocho"
    }
  ],
  "word": "knotted wrack"
}