卵黄囊 luǎn huáng náng

DEFINITIONS

  1. yolk sac (ectodermal cells attaching fetus to uterus before the development of the placenta)

CHARACTERS

卵 luǎn egg; ovum; roe; spawn
黄 huáng
HSK 3
yellow; surname
囊 náng bag, purse, sack; put in bag