Hollow quoin
| (Engin.) | a pier of stone or brick made behind the lock gates of a canal, and containing a hollow or recess to receive the ends of the gates. | See under Hollow. |
See also: Hollow, Quoin
英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。