"eye agate" meaning in English

{
  "forms": [
    {
      "form": "eye agates",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "eye agate (countable and uncountable, plural eye agates)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "1867, Lewis Feuchtwanger, A Popular Treatise on Gems",
          "text": "If the stripes run together around the centre, it is called the circle agate, and if in the same stone the centre shows more colored spots, it is called the eye agate, or eyestone",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A kind of circle agate, with the central part of deeper tints than the rest of the mass."
      ],
      "id": "en-eye_agate-en-noun-rg~aM2kM",
      "links": [
        [
          "circle agate",
          "circle agate"
        ],
        [
          "tint",
          "tint"
        ]
      ],
      "synonyms": [
        {
          "word": "eyestone"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "eye agate"
}

{
  "forms": [
    {
      "form": "eye agates",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "eye agate (countable and uncountable, plural eye agates)",
      "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",
        "English terms with quotations",
        "English uncountable nouns"
      ],
      "examples": [
        {
          "ref": "1867, Lewis Feuchtwanger, A Popular Treatise on Gems",
          "text": "If the stripes run together around the centre, it is called the circle agate, and if in the same stone the centre shows more colored spots, it is called the eye agate, or eyestone",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A kind of circle agate, with the central part of deeper tints than the rest of the mass."
      ],
      "links": [
        [
          "circle agate",
          "circle agate"
        ],
        [
          "tint",
          "tint"
        ]
      ],
      "synonyms": [
        {
          "word": "eyestone"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "eye agate"
}