"space group" meaning in English

{
  "forms": [
    {
      "form": "space groups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "space group (plural space groups)",
      "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": "topical",
          "langcode": "en",
          "name": "Crystallography",
          "orig": "en:Crystallography",
          "parents": [
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mineralogy",
          "orig": "en:Mineralogy",
          "parents": [
            "Geology",
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1998, Georgina Ferry, Dorothy Hodgkin: A Life",
          "text": "Dorothy also learned to identify the space group of a molecule, an essential prerequisite for finding the structure, by looking for spots that were missing from the regular array in an X-ray photograph.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The set of all symmetry operations that can be applied to a given crystal without changing it."
      ],
      "id": "en-space_group-en-noun-k9lTLKdg",
      "links": [
        [
          "crystallography",
          "crystallography"
        ],
        [
          "mineralogy",
          "mineralogy"
        ],
        [
          "symmetry",
          "symmetry"
        ]
      ],
      "raw_glosses": [
        "(crystallography, mineralogy) The set of all symmetry operations that can be applied to a given crystal without changing it."
      ],
      "topics": [
        "chemistry",
        "crystallography",
        "geography",
        "geology",
        "mineralogy",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "space group"
      ]
    }
  ],
  "word": "space group"
}

{
  "forms": [
    {
      "form": "space groups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "space group (plural space groups)",
      "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",
        "Quotation templates to be cleaned",
        "en:Crystallography",
        "en:Mineralogy"
      ],
      "examples": [
        {
          "ref": "1998, Georgina Ferry, Dorothy Hodgkin: A Life",
          "text": "Dorothy also learned to identify the space group of a molecule, an essential prerequisite for finding the structure, by looking for spots that were missing from the regular array in an X-ray photograph.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The set of all symmetry operations that can be applied to a given crystal without changing it."
      ],
      "links": [
        [
          "crystallography",
          "crystallography"
        ],
        [
          "mineralogy",
          "mineralogy"
        ],
        [
          "symmetry",
          "symmetry"
        ]
      ],
      "raw_glosses": [
        "(crystallography, mineralogy) The set of all symmetry operations that can be applied to a given crystal without changing it."
      ],
      "topics": [
        "chemistry",
        "crystallography",
        "geography",
        "geology",
        "mineralogy",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "space group"
      ]
    }
  ],
  "word": "space group"
}