"Lyman's law" meaning in English

{
  "etymology_text": "After Benjamin Smith Lyman (1835–1920), American mining engineer and amateur linguist.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Lyman's law",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "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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          "name": "Pages with 1 entry",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Linguistics",
          "orig": "en:Linguistics",
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            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "A linguistic rule stating that rendaku does not occur if the second element of the compound contains a voiced obstruent in any position, e.g. yama + kaji produces yamakaji (mountain fire), not *yamagaji."
      ],
      "id": "en-Lyman's_law-en-name-JVUcOa87",
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "linguistic",
          "linguistic"
        ],
        [
          "rendaku",
          "rendaku"
        ],
        [
          "compound",
          "compound"
        ],
        [
          "voiced",
          "voiced"
        ],
        [
          "obstruent",
          "obstruent"
        ]
      ],
      "raw_glosses": [
        "(linguistics) A linguistic rule stating that rendaku does not occur if the second element of the compound contains a voiced obstruent in any position, e.g. yama + kaji produces yamakaji (mountain fire), not *yamagaji."
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ],
      "wikipedia": [
        "Benjamin Smith Lyman",
        "Lyman's law"
      ]
    }
  ],
  "word": "Lyman's law"
}

{
  "etymology_text": "After Benjamin Smith Lyman (1835–1920), American mining engineer and amateur linguist.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Lyman's law",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Linguistics"
      ],
      "glosses": [
        "A linguistic rule stating that rendaku does not occur if the second element of the compound contains a voiced obstruent in any position, e.g. yama + kaji produces yamakaji (mountain fire), not *yamagaji."
      ],
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "linguistic",
          "linguistic"
        ],
        [
          "rendaku",
          "rendaku"
        ],
        [
          "compound",
          "compound"
        ],
        [
          "voiced",
          "voiced"
        ],
        [
          "obstruent",
          "obstruent"
        ]
      ],
      "raw_glosses": [
        "(linguistics) A linguistic rule stating that rendaku does not occur if the second element of the compound contains a voiced obstruent in any position, e.g. yama + kaji produces yamakaji (mountain fire), not *yamagaji."
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ],
      "wikipedia": [
        "Benjamin Smith Lyman",
        "Lyman's law"
      ]
    }
  ],
  "word": "Lyman's law"
}