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tear sac is a noun meaning "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". It carries one recorded sense.
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
Definitions, synonyms and semantic relations for tear sac come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.