"Atlas stone" meaning in English

{
  "etymology_text": "In reference to the mythological Atlas, who held up the Earth.",
  "forms": [
    {
      "form": "Atlas stones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Atlas stone (plural Atlas stones)",
      "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": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A spherical concrete stone used in weightlifting challenges."
      ],
      "id": "en-Atlas_stone-en-noun-0-YVAiV1",
      "links": [
        [
          "spherical",
          "spherical"
        ],
        [
          "concrete",
          "concrete"
        ],
        [
          "stone",
          "stone"
        ],
        [
          "weightlifting",
          "weightlifting"
        ],
        [
          "challenge",
          "challenge"
        ]
      ]
    }
  ],
  "word": "Atlas stone"
}

{
  "etymology_text": "In reference to the mythological Atlas, who held up the Earth.",
  "forms": [
    {
      "form": "Atlas stones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Atlas stone (plural Atlas stones)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys"
      ],
      "glosses": [
        "A spherical concrete stone used in weightlifting challenges."
      ],
      "links": [
        [
          "spherical",
          "spherical"
        ],
        [
          "concrete",
          "concrete"
        ],
        [
          "stone",
          "stone"
        ],
        [
          "weightlifting",
          "weightlifting"
        ],
        [
          "challenge",
          "challenge"
        ]
      ]
    }
  ],
  "word": "Atlas stone"
}