umbilicus
noun [ C ] anatomy specialized uk/ʌmˈbɪl.ɪ.kəs/ us/ʌmˈbɪl.ə.kəs/ umbilici /ʌmˈbɪl.ɪ.kaɪ/ /ʌmˈbɪl.ə.kaɪ/ umbilicuses
脐
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
Unlike other mammals, the human umbilicus is clearly visible. 和其他哺乳动物不同，人类的脐肉眼清楚可见。
Synonyms: belly button naveltummy button