"α" meaning in 跨語言

{
  "categories": [
    {
      "kind": "other",
      "name": "帶有非標準語言標題的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有3個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言符號",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "α-naphthol"
    }
  ],
  "lang": "跨語言",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "glosses": [
        "（電動力學）精细结构常数"
      ],
      "id": "zh-α-mul-symbol-kvj0iwuK"
    },
    {
      "glosses": [
        "（經典力學）角加速度"
      ],
      "id": "zh-α-mul-symbol-wNOO66z8"
    },
    {
      "glosses": [
        "表示基團等的位置。"
      ],
      "id": "zh-α-mul-symbol-f0Omn79G",
      "raw_tags": [
        "化"
      ]
    },
    {
      "glosses": [
        "表示亮度高的恆星（通常是星座中最亮的），如α-Centauri。"
      ],
      "id": "zh-α-mul-symbol-6XrAJE9q",
      "raw_tags": [
        "天"
      ]
    },
    {
      "glosses": [
        "（拓補學）Alexandroff compactification。"
      ],
      "id": "zh-α-mul-symbol-OdhPZOwr"
    }
  ],
  "word": "α"
}

{
  "categories": [
    "帶有非標準語言標題的頁面",
    "有3個詞條的頁面",
    "跨語言符號",
    "跨語言詞元"
  ],
  "derived": [
    {
      "word": "α-naphthol"
    }
  ],
  "lang": "跨語言",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "glosses": [
        "（電動力學）精细结构常数"
      ]
    },
    {
      "glosses": [
        "（經典力學）角加速度"
      ]
    },
    {
      "glosses": [
        "表示基團等的位置。"
      ],
      "raw_tags": [
        "化"
      ]
    },
    {
      "glosses": [
        "表示亮度高的恆星（通常是星座中最亮的），如α-Centauri。"
      ],
      "raw_tags": [
        "天"
      ]
    },
    {
      "glosses": [
        "（拓補學）Alexandroff compactification。"
      ]
    }
  ],
  "word": "α"
}