"alpha-blocker" meaning in English

{
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      "form": "alpha-blockers",
      "tags": [
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  "head_templates": [
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      "args": {},
      "expansion": "alpha-blocker (plural alpha-blockers)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
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          "kind": "topical",
          "langcode": "en",
          "name": "Pharmacology",
          "orig": "en:Pharmacology",
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        }
      ],
      "glosses": [
        "A drug which blocks α1-adrenergic receptors in arteries and smooth muscles. Used to treat benign prostatic hyperplasia and prostatitis and other conditions."
      ],
      "id": "en-alpha-blocker-en-noun-~iS6wDaj",
      "links": [
        [
          "pharmacology",
          "pharmacology"
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        [
          "drug",
          "drug"
        ],
        [
          "receptor",
          "receptor"
        ],
        [
          "arteries",
          "artery"
        ],
        [
          "smooth muscle",
          "smooth muscle"
        ],
        [
          "prostatitis",
          "prostatitis"
        ]
      ],
      "raw_glosses": [
        "(pharmacology) A drug which blocks α1-adrenergic receptors in arteries and smooth muscles. Used to treat benign prostatic hyperplasia and prostatitis and other conditions."
      ],
      "synonyms": [
        {
          "word": "alpha-adrenergic blocking agents"
        }
      ],
      "topics": [
        "medicine",
        "pharmacology",
        "sciences"
      ],
      "translations": [
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "drug which blocks α1-adrenergic receptors",
          "tags": [
            "masculine"
          ],
          "word": "bloqueador alfa"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "drug which blocks α1-adrenergic receptors",
          "tags": [
            "masculine"
          ],
          "word": "bloqueador alfa-adrenérgico"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "drug which blocks α1-adrenergic receptors",
          "tags": [
            "masculine"
          ],
          "word": "antagonista alfa-adrenérgico"
        }
      ],
      "wikipedia": [
        "alpha-blocker"
      ]
    }
  ],
  "word": "alpha-blocker"
}

{
  "forms": [
    {
      "form": "alpha-blockers",
      "tags": [
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  ],
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      "expansion": "alpha-blocker (plural alpha-blockers)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "en:Pharmacology"
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      "glosses": [
        "A drug which blocks α1-adrenergic receptors in arteries and smooth muscles. Used to treat benign prostatic hyperplasia and prostatitis and other conditions."
      ],
      "links": [
        [
          "pharmacology",
          "pharmacology"
        ],
        [
          "drug",
          "drug"
        ],
        [
          "receptor",
          "receptor"
        ],
        [
          "arteries",
          "artery"
        ],
        [
          "smooth muscle",
          "smooth muscle"
        ],
        [
          "prostatitis",
          "prostatitis"
        ]
      ],
      "raw_glosses": [
        "(pharmacology) A drug which blocks α1-adrenergic receptors in arteries and smooth muscles. Used to treat benign prostatic hyperplasia and prostatitis and other conditions."
      ],
      "topics": [
        "medicine",
        "pharmacology",
        "sciences"
      ],
      "wikipedia": [
        "alpha-blocker"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "alpha-adrenergic blocking agents"
    }
  ],
  "translations": [
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "drug which blocks α1-adrenergic receptors",
      "tags": [
        "masculine"
      ],
      "word": "bloqueador alfa"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "drug which blocks α1-adrenergic receptors",
      "tags": [
        "masculine"
      ],
      "word": "bloqueador alfa-adrenérgico"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "drug which blocks α1-adrenergic receptors",
      "tags": [
        "masculine"
      ],
      "word": "antagonista alfa-adrenérgico"
    }
  ],
  "word": "alpha-blocker"
}