"burr puzzle" meaning in English

{
  "etymology_text": "The finished shape of many such puzzles resembles a burr (seed pod).",
  "forms": [
    {
      "form": "burr puzzles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "burr puzzle (plural burr puzzles)",
      "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": [
        "An interlocking puzzle consisting of notched sticks to be assembled into a three-dimensional structure."
      ],
      "id": "en-burr_puzzle-en-noun-IDGHNTk5",
      "links": [
        [
          "interlock",
          "interlock"
        ],
        [
          "puzzle",
          "puzzle"
        ],
        [
          "notched",
          "notched"
        ],
        [
          "stick",
          "stick"
        ],
        [
          "assemble",
          "assemble"
        ],
        [
          "structure",
          "structure"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "puzzle",
          "word": "pirunnyrkki"
        }
      ],
      "wikipedia": [
        "burr puzzle"
      ]
    }
  ],
  "word": "burr puzzle"
}

{
  "etymology_text": "The finished shape of many such puzzles resembles a burr (seed pod).",
  "forms": [
    {
      "form": "burr puzzles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "burr puzzle (plural burr puzzles)",
      "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"
      ],
      "glosses": [
        "An interlocking puzzle consisting of notched sticks to be assembled into a three-dimensional structure."
      ],
      "links": [
        [
          "interlock",
          "interlock"
        ],
        [
          "puzzle",
          "puzzle"
        ],
        [
          "notched",
          "notched"
        ],
        [
          "stick",
          "stick"
        ],
        [
          "assemble",
          "assemble"
        ],
        [
          "structure",
          "structure"
        ]
      ],
      "wikipedia": [
        "burr puzzle"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "puzzle",
      "word": "pirunnyrkki"
    }
  ],
  "word": "burr puzzle"
}