"PFV" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "PFV",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "persistent fetal vasculature"
        }
      ],
      "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"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Diseases",
          "orig": "en:Diseases",
          "parents": [
            "Disease",
            "Health",
            "Body",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of persistent fetal vasculature."
      ],
      "id": "en-PFV-en-noun-QW4yWb2V",
      "links": [
        [
          "pathology",
          "pathology"
        ],
        [
          "persistent fetal vasculature",
          "persistent fetal vasculature#English"
        ]
      ],
      "raw_glosses": [
        "(pathology) Initialism of persistent fetal vasculature."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ]
    }
  ],
  "word": "PFV"
}

{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "PFV",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "persistent fetal vasculature"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English initialisms",
        "English lemmas",
        "English nouns",
        "English nouns with unknown or uncertain plurals",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Diseases"
      ],
      "glosses": [
        "Initialism of persistent fetal vasculature."
      ],
      "links": [
        [
          "pathology",
          "pathology"
        ],
        [
          "persistent fetal vasculature",
          "persistent fetal vasculature#English"
        ]
      ],
      "raw_glosses": [
        "(pathology) Initialism of persistent fetal vasculature."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ]
    }
  ],
  "word": "PFV"
}