archduke/ˌɑ:tʃˈdju:k; ?@ -ˈdu:k; `ɑrtʃ`duk/ n(fem 阴性作 archduchess / ˌɑ:tʃˈdʌtʃɪs; `ɑrtʃ`dʌtʃɪs/) duke of the highest rank, esp (formerly) the son of the Austrian Emperor 大公（尤指旧时奥国皇太子）.
牛津英汉双解词典