"fcc" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "fcc (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "face-centered cubic"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Crystallography",
          "orig": "en:Crystallography",
          "parents": [
            "Crystal",
            "Physics",
            "Matter",
            "Physical chemistry",
            "Sciences",
            "Chemistry",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "bcc"
        }
      ],
      "glosses": [
        "Initialism of face-centered cubic."
      ],
      "id": "en-fcc-en-adj-c~~XYkaU",
      "links": [
        [
          "crystallography",
          "crystallography"
        ],
        [
          "face-centered",
          "face-centered#English"
        ],
        [
          "cubic",
          "cubic#English"
        ]
      ],
      "raw_glosses": [
        "(crystallography) Initialism of face-centered cubic."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "not-comparable"
      ],
      "topics": [
        "chemistry",
        "crystallography",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "fcc"
}

{
  "coordinate_terms": [
    {
      "word": "bcc"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "fcc (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "face-centered cubic"
        }
      ],
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English initialisms",
        "English lemmas",
        "English uncomparable adjectives",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Crystallography"
      ],
      "glosses": [
        "Initialism of face-centered cubic."
      ],
      "links": [
        [
          "crystallography",
          "crystallography"
        ],
        [
          "face-centered",
          "face-centered#English"
        ],
        [
          "cubic",
          "cubic#English"
        ]
      ],
      "raw_glosses": [
        "(crystallography) Initialism of face-centered cubic."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "not-comparable"
      ],
      "topics": [
        "chemistry",
        "crystallography",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "fcc"
}