"formal grammar" meaning in English

{
  "forms": [
    {
      "form": "formal grammars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "formal grammar (plural formal grammars)",
      "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"
        },
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          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
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          "parents": [],
          "source": "w"
        },
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          "name": "Pages with entries",
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        },
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          "kind": "other",
          "name": "Terms with Serbo-Croatian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computer science",
          "orig": "en:Computer science",
          "parents": [
            "Computing",
            "Sciences",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A precise mathematical description of a formal language, consisting of terminal symbols, nonterminal symbols, a nonterminal symbol serving as start symbol, and a set of production rules that control the expansion of nonterminal symbols into strings consisting of both terminal and nonterminal symbols."
      ],
      "holonyms": [
        {
          "word": "formal language"
        }
      ],
      "id": "en-formal_grammar-en-noun-9Hf8UHL1",
      "links": [
        [
          "computer science",
          "computer science"
        ],
        [
          "mathematical",
          "mathematical"
        ],
        [
          "formal language",
          "formal language"
        ],
        [
          "production rules",
          "formation rule"
        ]
      ],
      "meronyms": [
        {
          "word": "formation rules"
        }
      ],
      "raw_glosses": [
        "(computer science) A precise mathematical description of a formal language, consisting of terminal symbols, nonterminal symbols, a nonterminal symbol serving as start symbol, and a set of production rules that control the expansion of nonterminal symbols into strings consisting of both terminal and nonterminal symbols."
      ],
      "related": [
        {
          "word": "generative grammar"
        },
        {
          "word": "analytic grammar"
        }
      ],
      "topics": [
        "computer",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "science",
        "sciences"
      ],
      "translations": [
        {
          "code": "sh",
          "lang": "Serbo-Croatian",
          "sense": "description of a formal language",
          "tags": [
            "feminine"
          ],
          "word": "formalna gramatika"
        }
      ],
      "wikipedia": [
        "formal grammar"
      ]
    }
  ],
  "word": "formal grammar"
}

{
  "forms": [
    {
      "form": "formal grammars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "formal grammar (plural formal grammars)",
      "name": "en-noun"
    }
  ],
  "holonyms": [
    {
      "word": "formal language"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "meronyms": [
    {
      "word": "formation rules"
    }
  ],
  "pos": "noun",
  "related": [
    {
      "word": "generative grammar"
    },
    {
      "word": "analytic grammar"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Serbo-Croatian translations",
        "en:Computer science"
      ],
      "glosses": [
        "A precise mathematical description of a formal language, consisting of terminal symbols, nonterminal symbols, a nonterminal symbol serving as start symbol, and a set of production rules that control the expansion of nonterminal symbols into strings consisting of both terminal and nonterminal symbols."
      ],
      "links": [
        [
          "computer science",
          "computer science"
        ],
        [
          "mathematical",
          "mathematical"
        ],
        [
          "formal language",
          "formal language"
        ],
        [
          "production rules",
          "formation rule"
        ]
      ],
      "raw_glosses": [
        "(computer science) A precise mathematical description of a formal language, consisting of terminal symbols, nonterminal symbols, a nonterminal symbol serving as start symbol, and a set of production rules that control the expansion of nonterminal symbols into strings consisting of both terminal and nonterminal symbols."
      ],
      "topics": [
        "computer",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "science",
        "sciences"
      ],
      "wikipedia": [
        "formal grammar"
      ]
    }
  ],
  "translations": [
    {
      "code": "sh",
      "lang": "Serbo-Croatian",
      "sense": "description of a formal language",
      "tags": [
        "feminine"
      ],
      "word": "formalna gramatika"
    }
  ],
  "word": "formal grammar"
}