柯林斯词典lacunar /ləˈkjuːnə/ 1. N a ceiling, soffit, or vault having coffers 花格鑲板 (Also called lequear)2. ADJ of, relating to, or containing a lacuna or lacunas 陷窩的; 含陷窩的 返回 lacunar剑桥词典relating to the absence of symptoms of a disorder for a short time 間隙的 relating to an empty space or gap , for example the tiny hollow spaces in bones 陷窩的 返回 lacunar