"perpendicle" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "perpendiculum"
      },
      "expansion": "Latin perpendiculum",
      "name": "der"
    },
    {
      "args": {
        "1": "fr",
        "2": "perpendicule"
      },
      "expansion": "French perpendicule",
      "name": "cog"
    }
  ],
  "etymology_text": "From Latin perpendiculum, from per + pendere (“to hang”). Compare French perpendicule.",
  "forms": [
    {
      "form": "perpendicles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "perpendicle (plural perpendicles)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Something hanging straight down; a plumb line."
      ],
      "id": "en-perpendicle-en-noun-XT1hFWbr",
      "links": [
        [
          "plumb line",
          "plumb line"
        ]
      ],
      "raw_glosses": [
        "(obsolete) Something hanging straight down; a plumb line."
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "word": "perpendicle"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "perpendiculum"
      },
      "expansion": "Latin perpendiculum",
      "name": "der"
    },
    {
      "args": {
        "1": "fr",
        "2": "perpendicule"
      },
      "expansion": "French perpendicule",
      "name": "cog"
    }
  ],
  "etymology_text": "From Latin perpendiculum, from per + pendere (“to hang”). Compare French perpendicule.",
  "forms": [
    {
      "form": "perpendicles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "perpendicle (plural perpendicles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms derived from Latin",
        "English terms with obsolete senses",
        "Pages with 1 entry"
      ],
      "glosses": [
        "Something hanging straight down; a plumb line."
      ],
      "links": [
        [
          "plumb line",
          "plumb line"
        ]
      ],
      "raw_glosses": [
        "(obsolete) Something hanging straight down; a plumb line."
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "word": "perpendicle"
}