a very long word (a foot and a half long)
同义词：sesquipedalia
given to the overuse of long words
(of words) long and ponderous; having many syllables
同义词：polysyllabic
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。