释义 |
DictionarySeesacgestational sac
gestational saccystic structure of early pregnancy that represents the amnionic sac, fluid, and placenta.ges·ta·tion·al sac (jes-tā'shŭn-ăl sak) Cystic structure of early pregnancy that represents the amnionic sac, fluid, and placenta; in humans, the fused amnion and chorion. AcronymsSeeGS |