A word,phrase,or name,usually set in boldface or other distinctive type,that serves as the heading for an entry in a dictionary,an encyclopedia,or a similar reference work.是什么意思_A word,phrase,or name,usually set in boldface or other distinctive type,that serves as the heading for an entry in a dictionary,an encyclopedia,or a similar reference work.在线翻译_英语_读音_用法_例句