母胎

mǔtāi
mother's womb

CEDICT

Entry Composition

1 母 mǔ
  1. mother
  2. elderly female relative
  3. origin
  4. source
  5. (of animals) female
2 胎 tāi
  1. fetus
  2. classifier for litters (of puppies etc)
  3. padding (in clothing or bedding)
  4. womb carrying a fetus
  5. (fig.) origin
  6. source
  7. (loanword) tire