"PRO" meaning in English

{
  "etymology_number": 1,
  "etymology_text": "Initialism.",
  "forms": [
    {
      "form": "PROs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "PRO (countable and uncountable, plural PROs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "pressure retarded osmosis"
        }
      ],
      "categories": [
        {
          "_dis": "62 18 19",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "54 25 21",
          "kind": "other",
          "name": "English symbols",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "65 16 19",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "67 15 18",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Initialism of pressure retarded osmosis."
      ],
      "id": "en-PRO-en-noun-M0rbvnBI",
      "links": [
        [
          "pressure retarded osmosis",
          "pressure retarded osmosis#English"
        ]
      ],
      "related": [
        {
          "_dis1": "66 34",
          "word": "RED"
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "countable",
        "initialism",
        "uncountable"
      ]
    },
    {
      "alt_of": [
        {
          "word": "patient-reported outcome"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Medicine",
          "orig": "en:Medicine",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              263,
              267
            ]
          ],
          "ref": "2022 August 30, Ricardo Ruiz-Villaverde, Lourdes Rodriguez Fernandez-Freire, Pilar Font-Ugalde, Manuel Galan-Gutierrez, “Tildrakizumab: Efficacy, Safety and Survival in Mid-Term (52 Weeks) in Three Tertiary Hospitals in Andalucia (Spain)”, in Journal of Clinical Medicine, volume 11, number 17, →DOI, page 5:",
          "text": "In the bivariate analysis carried out by subgroups, we did not find statistically significant differences (p < 0.05) between bionaïve or bioexperienced patients, patients with BMI < 30 or BMI > 30 in relation to the efficacy variables (PASI and BSA) and analyzed PROs (VAS pruritus and DLQI).",
          "type": "quote"
        }
      ],
      "glosses": [
        "Initialism of patient-reported outcome."
      ],
      "id": "en-PRO-en-noun-kN6fneuU",
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "patient-reported outcome",
          "w:patient-reported outcome"
        ]
      ],
      "raw_glosses": [
        "(medicine) Initialism of patient-reported outcome."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "countable",
        "initialism",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ]
    }
  ],
  "word": "PRO"
}

{
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "+ (linguistics)"
      },
      "expansion": "",
      "name": "wp"
    }
  ],
  "etymology_text": "From the term pronoun.",
  "head_templates": [
    {
      "args": {
        "1": "sym"
      },
      "expansion": "PRO",
      "name": "en-head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        {
          "_dis": "21 19 61",
          "kind": "other",
          "langcode": "en",
          "name": "Linguistics",
          "orig": "en:Linguistics",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "coordinate_terms": [
        {
          "english": "little pro",
          "translation": "little pro",
          "word": "pro ()"
        }
      ],
      "glosses": [
        "A theoretical phonologically null pronoun"
      ],
      "id": "en-PRO-en-symbol-EXWYzzq9",
      "raw_glosses": [
        "(syntax) A theoretical phonologically null pronoun"
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences",
        "syntax"
      ]
    }
  ],
  "word": "PRO"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English symbols",
    "English uncountable nouns",
    "Pages with 2 entries",
    "Pages with entries",
    "en:Linguistics"
  ],
  "etymology_number": 1,
  "etymology_text": "Initialism.",
  "forms": [
    {
      "form": "PROs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "PRO (countable and uncountable, plural PROs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "RED"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "pressure retarded osmosis"
        }
      ],
      "categories": [
        "English initialisms"
      ],
      "glosses": [
        "Initialism of pressure retarded osmosis."
      ],
      "links": [
        [
          "pressure retarded osmosis",
          "pressure retarded osmosis#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "countable",
        "initialism",
        "uncountable"
      ]
    },
    {
      "alt_of": [
        {
          "word": "patient-reported outcome"
        }
      ],
      "categories": [
        "English initialisms",
        "English terms with quotations",
        "en:Medicine"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              263,
              267
            ]
          ],
          "ref": "2022 August 30, Ricardo Ruiz-Villaverde, Lourdes Rodriguez Fernandez-Freire, Pilar Font-Ugalde, Manuel Galan-Gutierrez, “Tildrakizumab: Efficacy, Safety and Survival in Mid-Term (52 Weeks) in Three Tertiary Hospitals in Andalucia (Spain)”, in Journal of Clinical Medicine, volume 11, number 17, →DOI, page 5:",
          "text": "In the bivariate analysis carried out by subgroups, we did not find statistically significant differences (p < 0.05) between bionaïve or bioexperienced patients, patients with BMI < 30 or BMI > 30 in relation to the efficacy variables (PASI and BSA) and analyzed PROs (VAS pruritus and DLQI).",
          "type": "quote"
        }
      ],
      "glosses": [
        "Initialism of patient-reported outcome."
      ],
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "patient-reported outcome",
          "w:patient-reported outcome"
        ]
      ],
      "raw_glosses": [
        "(medicine) Initialism of patient-reported outcome."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "countable",
        "initialism",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ]
    }
  ],
  "word": "PRO"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English symbols",
    "Pages with 2 entries",
    "Pages with entries",
    "en:Linguistics"
  ],
  "coordinate_terms": [
    {
      "english": "little pro",
      "translation": "little pro",
      "word": "pro ()"
    }
  ],
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "+ (linguistics)"
      },
      "expansion": "",
      "name": "wp"
    }
  ],
  "etymology_text": "From the term pronoun.",
  "head_templates": [
    {
      "args": {
        "1": "sym"
      },
      "expansion": "PRO",
      "name": "en-head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "symbol",
  "senses": [
    {
      "glosses": [
        "A theoretical phonologically null pronoun"
      ],
      "raw_glosses": [
        "(syntax) A theoretical phonologically null pronoun"
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences",
        "syntax"
      ]
    }
  ],
  "word": "PRO"
}