"A factor" meaning in English

{
  "forms": [
    {
      "form": "the A factor",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the A factor",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Antarctic English",
          "parents": [],
          "source": "w"
        },
        {
          "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"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "2012, Albert A. Harrison, Yvonne A. Clearwater, Christopher P. McKay, From Antarctica to Outer Space\n[…] Antarctica are considerable, as can be seen in Table 4.2. The \"A\" Factor, as we call it, is a combination of the isolated environment, the subjects, the researcher, his skills and the laboratory provided, […]"
        },
        {
          "ref": "2013, Rachael Robertson, Leading on the Edge, page 131:",
          "text": "[…] the 'A' Factor — the curve balls, mostly weather related, that Antarctica can throw at you, any time, any place.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The special difficulties presented by carrying out any project in Antarctica."
      ],
      "id": "en-A_factor-en-name-v4s6PYz4",
      "links": [
        [
          "special",
          "special"
        ],
        [
          "difficulties",
          "difficulty"
        ],
        [
          "project",
          "project"
        ],
        [
          "Antarctica",
          "Antarctica"
        ]
      ],
      "qualifier": "Antarctica",
      "raw_glosses": [
        "(Antarctica, informal) The special difficulties presented by carrying out any project in Antarctica."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "A factor"
}

{
  "forms": [
    {
      "form": "the A factor",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the A factor",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Antarctic English",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "2012, Albert A. Harrison, Yvonne A. Clearwater, Christopher P. McKay, From Antarctica to Outer Space\n[…] Antarctica are considerable, as can be seen in Table 4.2. The \"A\" Factor, as we call it, is a combination of the isolated environment, the subjects, the researcher, his skills and the laboratory provided, […]"
        },
        {
          "ref": "2013, Rachael Robertson, Leading on the Edge, page 131:",
          "text": "[…] the 'A' Factor — the curve balls, mostly weather related, that Antarctica can throw at you, any time, any place.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The special difficulties presented by carrying out any project in Antarctica."
      ],
      "links": [
        [
          "special",
          "special"
        ],
        [
          "difficulties",
          "difficulty"
        ],
        [
          "project",
          "project"
        ],
        [
          "Antarctica",
          "Antarctica"
        ]
      ],
      "qualifier": "Antarctica",
      "raw_glosses": [
        "(Antarctica, informal) The special difficulties presented by carrying out any project in Antarctica."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "A factor"
}