A mark, especially on a window sill, etc., made at the point where the sun is at noon, used to reckon the time.
Mid 19th century; earliest use found in Caroline Kirkland (1801–1864), writer.
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。