"therethroughout" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "there",
        "3": "throughout"
      },
      "expansion": "there + throughout",
      "name": "compound"
    }
  ],
  "etymology_text": "there + throughout",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "therethroughout (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "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"
        }
      ],
      "examples": [
        {
          "ref": "1980, Paul G Stecher, New dental materials",
          "text": "Still another way of practicing the process is to provide cured liners or sheets having the particles distributed therethroughout […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Throughout that."
      ],
      "id": "en-therethroughout-en-adv-PS~klKqd",
      "raw_glosses": [
        "(rare) Throughout that."
      ],
      "tags": [
        "not-comparable",
        "rare"
      ]
    }
  ],
  "word": "therethroughout"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "there",
        "3": "throughout"
      },
      "expansion": "there + throughout",
      "name": "compound"
    }
  ],
  "etymology_text": "there + throughout",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "therethroughout (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "English adverbs",
        "English compound terms",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English pronominal adverbs",
        "English terms with quotations",
        "English terms with rare senses",
        "English uncomparable adverbs"
      ],
      "examples": [
        {
          "ref": "1980, Paul G Stecher, New dental materials",
          "text": "Still another way of practicing the process is to provide cured liners or sheets having the particles distributed therethroughout […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Throughout that."
      ],
      "raw_glosses": [
        "(rare) Throughout that."
      ],
      "tags": [
        "not-comparable",
        "rare"
      ]
    }
  ],
  "word": "therethroughout"
}