"pocket protector" meaning in English

{
  "forms": [
    {
      "form": "pocket protectors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pocket protector (plural pocket protectors)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "2009, J. Scott Turner, The Extended Organism: The Physiology of Animal-Built Structures, page 15",
          "text": "Common numbers like distances would never be expressed in megameters or nanomiles — it would bring us too close to the Dilbertian world of pocket protectors and calculator holsters.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A sheath, usually of plastic, designed to fit in a shirt pocket and hold pens and other small implements, preventing them from tearing or staining the shirt."
      ],
      "id": "en-pocket_protector-en-noun-8kkQLDYP",
      "links": [
        [
          "sheath",
          "sheath"
        ],
        [
          "pocket",
          "pocket"
        ]
      ],
      "translations": [
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "a sheath designed to fit in a shirt pocket",
          "tags": [
            "masculine"
          ],
          "word": "protector de bolsillo"
        }
      ]
    }
  ],
  "word": "pocket protector"
}

{
  "forms": [
    {
      "form": "pocket protectors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pocket protector (plural pocket protectors)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2009, J. Scott Turner, The Extended Organism: The Physiology of Animal-Built Structures, page 15",
          "text": "Common numbers like distances would never be expressed in megameters or nanomiles — it would bring us too close to the Dilbertian world of pocket protectors and calculator holsters.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A sheath, usually of plastic, designed to fit in a shirt pocket and hold pens and other small implements, preventing them from tearing or staining the shirt."
      ],
      "links": [
        [
          "sheath",
          "sheath"
        ],
        [
          "pocket",
          "pocket"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "a sheath designed to fit in a shirt pocket",
      "tags": [
        "masculine"
      ],
      "word": "protector de bolsillo"
    }
  ],
  "word": "pocket protector"
}