compact discn. 鐳射碟、鐳射唱片壓縮盤、光碟學術名詞光碟:資訊、金屬材料、電機工程、圖書館學與資訊科學、新聞傳播學、電子工程雷射唱片{CD}:音樂英文釋義a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser