The lacrimal sac or tear sac, the small pouch that collects and stores tears before they drain into the nose.
From Greek 'dakryon' (tear) + 'kystis' (sac or bladder). This is a straightforward anatomical term that directly describes the structure's function.
Your tear sac is so tiny you can't see it, but without it, your tears would pour down your face instead of draining invisibly into your nose—it's a clever design!
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