umbilicus

剑桥词典

the small , round part in the middle of the belly that is left after the umbilical cord (= the long tube of flesh joining the baby to its mother ) has been cut at birth
臍
Unlike other mammals , the human umbilicus is clearly visible . 和其他哺乳動物不同，人類的臍肉眼清楚可見。
同義詞
navel 返回 umbilicus