"ecology block" meaning in English

{
  "forms": [
    {
      "form": "ecology blocks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ecology block (plural ecology blocks)",
      "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 large concrete block with a groove in the bottom face and a tongue on the top face to eliminate slippage when they are stacked. There is also a steel loop on the top face to facilitate lifting. The blocks are stacked in an offset manner to create a wall for retaining earth by means of their great mass. A wall built with them can be readily dismantled and the blocks reused (in ecological fashion)."
      ],
      "id": "en-ecology_block-en-noun-uPholr-9",
      "links": [
        [
          "concrete",
          "concrete"
        ],
        [
          "block",
          "block"
        ],
        [
          "groove",
          "groove"
        ],
        [
          "tongue",
          "tongue"
        ],
        [
          "stacked",
          "stacked"
        ]
      ]
    }
  ],
  "word": "ecology block"
}

{
  "forms": [
    {
      "form": "ecology blocks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ecology block (plural ecology blocks)",
      "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": [
        "A large concrete block with a groove in the bottom face and a tongue on the top face to eliminate slippage when they are stacked. There is also a steel loop on the top face to facilitate lifting. The blocks are stacked in an offset manner to create a wall for retaining earth by means of their great mass. A wall built with them can be readily dismantled and the blocks reused (in ecological fashion)."
      ],
      "links": [
        [
          "concrete",
          "concrete"
        ],
        [
          "block",
          "block"
        ],
        [
          "groove",
          "groove"
        ],
        [
          "tongue",
          "tongue"
        ],
        [
          "stacked",
          "stacked"
        ]
      ]
    }
  ],
  "word": "ecology block"
}