铳眼或称射击孔、射孔为中国传统建筑之牛马墙(城墙与城壕之间的墙)、敌台(城墙上的防御塔)[1]、隘门或民居门楼墙上常见的小孔,外小内大,当门扇关闭时,可用火铳等火器向外射击以防范入侵。清代民间富户多自备大铳,以防万一,而铳眼则正是因应此防御武器所设置的建筑方式。[2]
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