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CJD is the short name, spoken as three letters, for Creutzfeldt–Jakob disease: a rare illness that damages the brain quite fast and is almost always fatal. Early signs can look a little like ordinary forgetfulness — confusion, unsteady walking, odd behaviour — but it is not the usual dementia of old age, and it is not a loose word for being . Most cases appear with no clear cause; a few run in families. News stories often mention a variant, , which is the one people connect with mad-cow disease; that is not the same as every case of CJD. You will meet the letters in medical talk and in serious news, not in everyday chat.
庫賈氏症（台灣慣稱；大陸較常說克雅氏病）
組成The initials of Creutzfeldt–Jakob disease, named after the two doctors who described it.
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
這個拼法也被記錄為下列字的變化形：
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。