1Chiefly North American a boundary or barrier in the form of a water-filled ditch (now rare).
2A fence built in, over, or adjacent to water; specifically †a wall built as a flood defence (obsolete).
3(In horse racing, etc.) a hazard or obstacle consisting of a fence combined with a water-filled ditch.
Mid 17th century.
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。