英语单词

词典成语诗词造句字典单词小说古文名言

Dictograph

['dɪktə,græf]

n. 窃听器；侦听器

英文词源

Dictograph: patented 1907 in U.S. by K.M. Turner and W. Donnan, from dictation + -graph "instrument for recording; something written."