"preventricular" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "ventricular"
      },
      "expansion": "pre- + ventricular",
      "name": "prefix"
    }
  ],
  "etymology_text": "pre- + ventricular",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "preventricular (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "74 26",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "68 32",
          "kind": "other",
          "name": "English terms prefixed with pre-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Prior to a ventricular contraction of the heart"
      ],
      "id": "en-preventricular-en-adj--rx3WdJx",
      "links": [
        [
          "ventricular",
          "ventricular"
        ],
        [
          "contraction",
          "contraction"
        ],
        [
          "heart",
          "heart"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "glosses": [
        "Relating to premature ventricular contraction"
      ],
      "id": "en-preventricular-en-adj-c6J1wFCB",
      "links": [
        [
          "premature",
          "premature"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "preventricular"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English terms prefixed with pre-",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "ventricular"
      },
      "expansion": "pre- + ventricular",
      "name": "prefix"
    }
  ],
  "etymology_text": "pre- + ventricular",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "preventricular (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "Prior to a ventricular contraction of the heart"
      ],
      "links": [
        [
          "ventricular",
          "ventricular"
        ],
        [
          "contraction",
          "contraction"
        ],
        [
          "heart",
          "heart"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "glosses": [
        "Relating to premature ventricular contraction"
      ],
      "links": [
        [
          "premature",
          "premature"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "preventricular"
}