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
   "Inflammation of the tear sac is called dacryocystitis";
   - lacrimal sac, dacryocyst

Derived forms: tear sacs

Type of: cyst, vesicle

Part of: lacrimal apparatus

Encyclopedia: Tear sac