"Joret line" meaning in English

{
  "etymology_text": "First identified by Charles Joret and published in 1883.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Joret line",
      "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"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Linguistics",
          "orig": "en:Linguistics",
          "parents": [
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An isogloss used in the linguistics of the langues d'oïl. Dialects north of the line have preserved Vulgar Latin /k/ and /ɡ/ before /a/; dialects south of the line have palatalized /k/ and /ɡ/ before /a/."
      ],
      "id": "en-Joret_line-en-name-tn2GNAKY",
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "isogloss",
          "isogloss"
        ],
        [
          "langues d'oïl",
          "langue d'oïl"
        ],
        [
          "Dialects",
          "dialect"
        ],
        [
          "palatalize",
          "palatalize"
        ]
      ],
      "raw_glosses": [
        "(linguistics) An isogloss used in the linguistics of the langues d'oïl. Dialects north of the line have preserved Vulgar Latin /k/ and /ɡ/ before /a/; dialects south of the line have palatalized /k/ and /ɡ/ before /a/."
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ],
      "wikipedia": [
        "Joret line"
      ]
    }
  ],
  "word": "Joret line"
}

{
  "etymology_text": "First identified by Charles Joret and published in 1883.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Joret line",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:Linguistics"
      ],
      "glosses": [
        "An isogloss used in the linguistics of the langues d'oïl. Dialects north of the line have preserved Vulgar Latin /k/ and /ɡ/ before /a/; dialects south of the line have palatalized /k/ and /ɡ/ before /a/."
      ],
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "isogloss",
          "isogloss"
        ],
        [
          "langues d'oïl",
          "langue d'oïl"
        ],
        [
          "Dialects",
          "dialect"
        ],
        [
          "palatalize",
          "palatalize"
        ]
      ],
      "raw_glosses": [
        "(linguistics) An isogloss used in the linguistics of the langues d'oïl. Dialects north of the line have preserved Vulgar Latin /k/ and /ɡ/ before /a/; dialects south of the line have palatalized /k/ and /ɡ/ before /a/."
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ],
      "wikipedia": [
        "Joret line"
      ]
    }
  ],
  "word": "Joret line"
}