- crenel
 - ['krenəl]
 - n. 城墙上端之垛口;枪眼
vt. 使…成雉堞状(等于crenelate) 
参考例子
           - 1.The Mutian Valley Great Wall's construction has the unique style, here watch tower is crowded, the mountain pass is important, the city both sides have the crenel.
 - 慕田峪长城的构筑有着独特的风格,这里敌楼密集,关隘险要,城两侧均有垛口。
 
- 2.Low is called the bench table, highly with city wall difference not many, but outside the prominent wall, all around has the crenel, is place which the patrol stands sentry.
 - 低的叫墙台,高度与城墙 相差不多但突出墙外,四周有垛口,是巡逻放哨的地方。
 
英文解释
           - n.
 - 1.one of a series of rounded projections (or the notches between them) formed by curves along an edge
 - 2.a notch or open space between two merlons in a crenelated battlement
 
- v.
 - 1.supply with battlements
 
网络释义
               - crenel
 - 城垛口; 枪眼;
 
- crenel porthole
 - 炮门;
 
- battlement or crenel
 - 垛口;
 
- crenel embrasure loophole machicoulis port
 - 枪眼;