quintuplet
n. 五胞胎之一;五个一组;五件一套
复数 quintuplets
例句
An image taken by the Hubble Space Telescope gives the clearest view ever of the Quintuplet star cluster.
一幅图象摄自哈勃太空望远镜给最清清楚视图曾经的五个一组星团。