"gemmology" meaning in English

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        "2": "la",
        "3": "gemma",
        "4": "",
        "5": "gem"
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      "expansion": "Latin gemma (“gem”)",
      "name": "uder"
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        "2": "",
        "3": "logy",
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  ],
  "etymology_text": "from Latin gemma (“gem”) + -logy (“science”).",
  "head_templates": [
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      "expansion": "gemmology (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "categories": [
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          "kind": "other",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mineralogy",
          "orig": "en:Mineralogy",
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            "Geology",
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "gemmological"
        },
        {
          "word": "gemmologist"
        }
      ],
      "glosses": [
        "the branch of mineralogy that studies mineral gems and petrified gemstones"
      ],
      "id": "en-gemmology-en-noun-OoDCpmIG",
      "links": [
        [
          "mineralogy",
          "mineralogy"
        ],
        [
          "mineral",
          "mineral"
        ],
        [
          "gem",
          "gem"
        ],
        [
          "petrified",
          "petrified"
        ],
        [
          "gemstone",
          "gemstone"
        ]
      ],
      "raw_glosses": [
        "(mineralogy) the branch of mineralogy that studies mineral gems and petrified gemstones"
      ],
      "synonyms": [
        {
          "word": "gemology"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "geography",
        "geology",
        "mineralogy",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "gemmology"
      ]
    }
  ],
  "word": "gemmology"
}

{
  "derived": [
    {
      "word": "gemmological"
    },
    {
      "word": "gemmologist"
    }
  ],
  "etymology_templates": [
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      "expansion": "Latin gemma (“gem”)",
      "name": "uder"
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  ],
  "etymology_text": "from Latin gemma (“gem”) + -logy (“science”).",
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      "expansion": "gemmology (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "glosses": [
        "the branch of mineralogy that studies mineral gems and petrified gemstones"
      ],
      "links": [
        [
          "mineralogy",
          "mineralogy"
        ],
        [
          "mineral",
          "mineral"
        ],
        [
          "gem",
          "gem"
        ],
        [
          "petrified",
          "petrified"
        ],
        [
          "gemstone",
          "gemstone"
        ]
      ],
      "raw_glosses": [
        "(mineralogy) the branch of mineralogy that studies mineral gems and petrified gemstones"
      ],
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        "uncountable"
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        "geography",
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  "synonyms": [
    {
      "word": "gemology"
    }
  ],
  "word": "gemmology"
}