How do you say “navel” in Vietnamese?

navel; belly button

for “navel” meaning: The indentation or bump remaining in the abdomen of placental mammals where the umbilical cord was attached before birth.

• Lúc tôi còn đang ở trong bụng mẹ, tôi thử nhìn ngôi nhà mà tôi sẽ được sinh ra qua lỗ rốn, rồi tôi nghĩ: "Nhà thế này thì không được rồi."When I was inside my mother's womb, I looked through my mother's navel at the house where I would be born and I thought: "This won't do".

navel; belly button

for “navel” meaning: The indentation or bump remaining in the abdomen of placental mammals where the umbilical cord was attached before birth.