Originally: an instrument which automatically records the contour line of the ground over which it travels; (later also) = profilometer.
Late 19th century; earliest use found in Scribner's Monthly. From French profilographe from profil + -o- + -graphe.
英汉双解词典包含464360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。