"Wallace line" meaning in English

{
  "etymology_text": "Named after William Wallace, who published the concept in 1799.",
  "forms": [
    {
      "form": "Wallace lines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Wallace line (plural Wallace lines)",
      "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": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Geometry",
          "orig": "en:Geometry",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of Simson line"
      ],
      "id": "en-Wallace_line-en-noun-dJdCK-9f",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "Simson line",
          "Simson line#English"
        ]
      ],
      "raw_glosses": [
        "(geometry) Synonym of Simson line"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "Simson line"
        }
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Wallace line"
}

{
  "etymology_text": "Named after William Wallace, who published the concept in 1799.",
  "forms": [
    {
      "form": "Wallace lines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Wallace line (plural Wallace lines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Geometry"
      ],
      "glosses": [
        "Synonym of Simson line"
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "Simson line",
          "Simson line#English"
        ]
      ],
      "raw_glosses": [
        "(geometry) Synonym of Simson line"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "Simson line"
        }
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Wallace line"
}