tear sac

1. Worse was to come when tests also confirmed a tear in the amniotic sac, which meant the waters were leaking.
   更糟糕的是，他们还检测到，羊膜囊也破裂了，羊水开始外流。
2. Conclusion Injection of air to tear-sac is a good method in the therapy of neonate dacryocystitis.
   结论泪囊压力注气术是治疗新生儿泪囊炎较为理想的一种自然物理疗法。

noun

1. either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands

   Synonym:    lacrimal sacdacryocyst