"Egyptian blue" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "Egyptian",
        "3": "blue"
      },
      "expansion": "Egyptian + blue",
      "name": "compound"
    }
  ],
  "etymology_text": "Egyptian + blue, from being a blue invented by Ancient Egyptians",
  "forms": [
    {
      "form": "Egyptian blues",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
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      "expansion": "Egyptian blue (countable and uncountable, plural Egyptian blues)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Pigments",
          "orig": "en:Pigments",
          "parents": [
            "Colors",
            "Light",
            "Vision",
            "Energy",
            "Senses",
            "Nature",
            "Perception",
            "All topics",
            "Body",
            "Fundamental",
            "Human"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "lapis lazuli"
        },
        {
          "english": "the first artificial purple, one of the first artificial pigments",
          "word": "Chinese purple"
        },
        {
          "english": "the first artificial purple, one of the first artificial pigments",
          "word": "Han purple"
        },
        {
          "word": "Chinese blue"
        },
        {
          "word": "Han blue"
        },
        {
          "english": "the first artificial pigment widely used in the modern world; not an ancient pigment",
          "word": "Prussian blue"
        }
      ],
      "glosses": [
        "A pigment made from calcium copper tetrasilicate (“CaCuSi₄O₁₀”), the first artificial pigment, a blue, used by Egyptians for over 3 millennia, before dying out during the Roman Empire; one of the few alternates to lapis lazuli during ancient times."
      ],
      "id": "en-Egyptian_blue-en-noun-xW8cXJqm",
      "links": [
        [
          "calcium copper tetrasilicate",
          "calcium copper tetrasilicate#English"
        ],
        [
          "pigment",
          "pigment"
        ],
        [
          "lapis lazuli",
          "lapis lazuli"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "translations": [
        {
          "code": "grc",
          "lang": "Ancient Greek",
          "roman": "kúanos",
          "sense": "Translations",
          "word": "κύανος"
        },
        {
          "code": "egy",
          "lang": "Egyptian",
          "sense": "Translations",
          "word": "ḫsbḏ jryt"
        },
        {
          "code": "la",
          "lang": "Latin",
          "sense": "Translations",
          "word": "caeruleum"
        },
        {
          "code": "la",
          "lang": "Latin",
          "sense": "Translations",
          "word": "coeruleum"
        }
      ]
    }
  ],
  "word": "Egyptian blue"
}

{
  "coordinate_terms": [
    {
      "word": "lapis lazuli"
    },
    {
      "english": "the first artificial purple, one of the first artificial pigments",
      "word": "Chinese purple"
    },
    {
      "english": "the first artificial purple, one of the first artificial pigments",
      "word": "Han purple"
    },
    {
      "word": "Chinese blue"
    },
    {
      "word": "Han blue"
    },
    {
      "english": "the first artificial pigment widely used in the modern world; not an ancient pigment",
      "word": "Prussian blue"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "Egyptian",
        "3": "blue"
      },
      "expansion": "Egyptian + blue",
      "name": "compound"
    }
  ],
  "etymology_text": "Egyptian + blue, from being a blue invented by Ancient Egyptians",
  "forms": [
    {
      "form": "Egyptian blues",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
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      "expansion": "Egyptian blue (countable and uncountable, plural Egyptian blues)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English entries with incorrect language header",
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        "Translation table header lacks gloss",
        "en:Pigments"
      ],
      "glosses": [
        "A pigment made from calcium copper tetrasilicate (“CaCuSi₄O₁₀”), the first artificial pigment, a blue, used by Egyptians for over 3 millennia, before dying out during the Roman Empire; one of the few alternates to lapis lazuli during ancient times."
      ],
      "links": [
        [
          "calcium copper tetrasilicate",
          "calcium copper tetrasilicate#English"
        ],
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          "pigment",
          "pigment"
        ],
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          "lapis lazuli",
          "lapis lazuli"
        ]
      ],
      "tags": [
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  ],
  "translations": [
    {
      "code": "grc",
      "lang": "Ancient Greek",
      "roman": "kúanos",
      "sense": "Translations",
      "word": "κύανος"
    },
    {
      "code": "egy",
      "lang": "Egyptian",
      "sense": "Translations",
      "word": "ḫsbḏ jryt"
    },
    {
      "code": "la",
      "lang": "Latin",
      "sense": "Translations",
      "word": "caeruleum"
    },
    {
      "code": "la",
      "lang": "Latin",
      "sense": "Translations",
      "word": "coeruleum"
    }
  ],
  "word": "Egyptian blue"
}