1. 开垛口：crenelet 小枪眼 | crenellation 开垛口 | creodont 哺乳动物
2. 锯齿状物 锯齿状物：crenation纯锯齿形 钝锯齿状 | crenellation锯齿状物 锯齿状物 | crenelle堡眼
3. 枪眼设备：crenellate /开枪眼/设炮门/ | crenellation /枪眼设备/ | crenelle /枪眼/炮门/
4. 城垛：Pomerium 城址(城牆內緣的受神祇保護的空地) | Crenellation 城垛 | Thermae 羅馬公共浴室
noun
1. crenellation的反义词
1. the action of constructing ramparts with gaps for firing guns or arrows
Synonym: crenelation
2. crenellation的近义词
2. a rampart built around the top of a castle with regular gaps for firing arrows or guns
Synonym: battlement crenelation