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 lacrimal sac is called dacryocystitis";
   - tear sac, dacryocyst

Derived forms: lacrimal sacs

Type of: cyst, vesicle

Part of: lacrimal apparatus

Encyclopedia: Lacrimal sac