lacrimal sac

Từ điển Oxford Learners Wordfinder Dictionary

noun

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
• Syn:
tear sac, dacryocyst
• Hypernyms:
vesicle, cyst
• Part Holonyms:
lacrimal apparatus