"midline" meaning in English

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "midline theorem"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mid",
        "3": "line"
      },
      "expansion": "mid- + line",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mid- + line.",
  "forms": [
    {
      "form": "midlines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "midline (plural midlines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Anatomy",
          "orig": "en:Anatomy",
          "parents": [
            "Biology",
            "Medicine",
            "Sciences",
            "Healthcare",
            "All topics",
            "Health",
            "Fundamental",
            "Body"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Medicine",
          "orig": "en:Medicine",
          "parents": [
            "Biology",
            "Healthcare",
            "Sciences",
            "Health",
            "All topics",
            "Body",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "54 46",
          "kind": "other",
          "name": "English terms prefixed with mid-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The medial line (or plane) of the body, which divides the body into halves that are mirror-images of each other."
      ],
      "id": "en-midline-en-noun-c3XpntjS",
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "medicine",
          "medicine"
        ],
        [
          "medial",
          "medial"
        ],
        [
          "line",
          "line"
        ],
        [
          "plane",
          "plane"
        ],
        [
          "body",
          "body"
        ]
      ],
      "raw_glosses": [
        "(anatomy, medicine) The medial line (or plane) of the body, which divides the body into halves that are mirror-images of each other."
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Typography",
          "orig": "en:Typography",
          "parents": [
            "Printing",
            "Writing",
            "Industries",
            "Human behaviour",
            "Language",
            "Business",
            "Human",
            "Communication",
            "Economics",
            "Society",
            "All topics",
            "Social sciences",
            "Fundamental",
            "Sciences"
          ],
          "source": "w"
        },
        {
          "_dis": "32 68",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "54 46",
          "kind": "other",
          "name": "English terms prefixed with mid-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "25 75",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The level of the top of the x-height of a typeface."
      ],
      "id": "en-midline-en-noun-06lliu8W",
      "links": [
        [
          "typography",
          "typography"
        ],
        [
          "x-height",
          "x-height"
        ],
        [
          "typeface",
          "typeface"
        ]
      ],
      "raw_glosses": [
        "(typography) The level of the top of the x-height of a typeface."
      ],
      "topics": [
        "media",
        "publishing",
        "typography"
      ]
    }
  ],
  "word": "midline"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with mid-",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "derived": [
    {
      "word": "midline theorem"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mid",
        "3": "line"
      },
      "expansion": "mid- + line",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mid- + line.",
  "forms": [
    {
      "form": "midlines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "midline (plural midlines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Anatomy",
        "en:Medicine"
      ],
      "glosses": [
        "The medial line (or plane) of the body, which divides the body into halves that are mirror-images of each other."
      ],
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "medicine",
          "medicine"
        ],
        [
          "medial",
          "medial"
        ],
        [
          "line",
          "line"
        ],
        [
          "plane",
          "plane"
        ],
        [
          "body",
          "body"
        ]
      ],
      "raw_glosses": [
        "(anatomy, medicine) The medial line (or plane) of the body, which divides the body into halves that are mirror-images of each other."
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    },
    {
      "categories": [
        "en:Typography"
      ],
      "glosses": [
        "The level of the top of the x-height of a typeface."
      ],
      "links": [
        [
          "typography",
          "typography"
        ],
        [
          "x-height",
          "x-height"
        ],
        [
          "typeface",
          "typeface"
        ]
      ],
      "raw_glosses": [
        "(typography) The level of the top of the x-height of a typeface."
      ],
      "topics": [
        "media",
        "publishing",
        "typography"
      ]
    }
  ],
  "word": "midline"
}