amniotic sac

amniotic sac读音音标

amniotic sac意思解释

释义

羊膜囊；

英英释义

n.

thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)

同义词：amnionamnios

双语例句

One outer membrane envelops both amniotic sacs.两个羊膜囊由一个外膜层包裹。Amniocentesis is the removal of fluid from the amniotic sac.羊膜穿刺术是从羊膜囊抽取羊水的技术。