"let blood" meaning in English

{
  "forms": [
    {
      "form": "lets blood",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "letting blood",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "let blood",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "let blood",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "let<,,let> blood"
      },
      "expansion": "let blood (third-person singular simple present lets blood, present participle letting blood, simple past and past participle let blood)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "_dis1": "39 38 23",
      "word": "bloodlet"
    },
    {
      "_dis1": "39 38 23",
      "word": "bloodletting"
    }
  ],
  "senses": [
    {
      "categories": [],
      "glosses": [
        "To extract blood from (a person, part of the body etc.)."
      ],
      "id": "en-let_blood-en-verb-CGtx7nKs",
      "qualifier": "now archaic or historical",
      "raw_glosses": [
        "(transitive, now archaic or historical) To extract blood from (a person, part of the body etc.)."
      ],
      "tags": [
        "transitive"
      ]
    },
    {
      "categories": [
        {
          "_dis": "30 54 15",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "To bleed someone; to extract blood from a person, part of the body etc. for supposed therapeutic purposes, especially by phlebotomy."
      ],
      "id": "en-let_blood-en-verb-b7DaDw-Y",
      "links": [
        [
          "bleed",
          "bleed"
        ],
        [
          "therapeutic",
          "therapeutic"
        ],
        [
          "phlebotomy",
          "phlebotomy"
        ]
      ],
      "qualifier": "now archaic or historical",
      "raw_glosses": [
        "(intransitive, now archaic or historical) To bleed someone; to extract blood from a person, part of the body etc. for supposed therapeutic purposes, especially by phlebotomy."
      ],
      "tags": [
        "intransitive"
      ]
    },
    {
      "glosses": [
        "To make (someone or something) bleed, in a general sense; to cut; to kill."
      ],
      "id": "en-let_blood-en-verb-kMqYt~Yi",
      "links": [
        [
          "bleed",
          "bleed"
        ],
        [
          "cut",
          "cut"
        ],
        [
          "kill",
          "kill"
        ]
      ],
      "raw_glosses": [
        "(figurative) To make (someone or something) bleed, in a general sense; to cut; to kill."
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "word": "let blood"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English verbs"
  ],
  "forms": [
    {
      "form": "lets blood",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "letting blood",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "let blood",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "let blood",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "let<,,let> blood"
      },
      "expansion": "let blood (third-person singular simple present lets blood, present participle letting blood, simple past and past participle let blood)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "bloodlet"
    },
    {
      "word": "bloodletting"
    }
  ],
  "senses": [
    {
      "categories": [
        "English terms with archaic senses",
        "English terms with historical senses",
        "English transitive verbs"
      ],
      "glosses": [
        "To extract blood from (a person, part of the body etc.)."
      ],
      "qualifier": "now archaic or historical",
      "raw_glosses": [
        "(transitive, now archaic or historical) To extract blood from (a person, part of the body etc.)."
      ],
      "tags": [
        "transitive"
      ]
    },
    {
      "categories": [
        "English intransitive verbs",
        "English terms with archaic senses",
        "English terms with historical senses"
      ],
      "glosses": [
        "To bleed someone; to extract blood from a person, part of the body etc. for supposed therapeutic purposes, especially by phlebotomy."
      ],
      "links": [
        [
          "bleed",
          "bleed"
        ],
        [
          "therapeutic",
          "therapeutic"
        ],
        [
          "phlebotomy",
          "phlebotomy"
        ]
      ],
      "qualifier": "now archaic or historical",
      "raw_glosses": [
        "(intransitive, now archaic or historical) To bleed someone; to extract blood from a person, part of the body etc. for supposed therapeutic purposes, especially by phlebotomy."
      ],
      "tags": [
        "intransitive"
      ]
    },
    {
      "glosses": [
        "To make (someone or something) bleed, in a general sense; to cut; to kill."
      ],
      "links": [
        [
          "bleed",
          "bleed"
        ],
        [
          "cut",
          "cut"
        ],
        [
          "kill",
          "kill"
        ]
      ],
      "raw_glosses": [
        "(figurative) To make (someone or something) bleed, in a general sense; to cut; to kill."
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "word": "let blood"
}