A stone or hard mineral deposit that forms in the tear ducts or lacrimal sac.
From Greek 'dakryon' (tear) and 'lithos' (stone). Variant spelling of dacryolite with the same meaning, using the direct Greek root rather than '-lite' suffix.
The 'lith' ending appears in geology terms (monolith, neolith, stalagmite) and ancient Greek place names—it literally means 'stone,' which is why 'dacryolith' is a tear stone.
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