A concretion in the lacrimal apparatus. SYN: lacrimal calculus, ophthalmolith, tear stone. [dacryo- + G. lithos, stone]
- Nocardia dacryoliths white pseudoconcretions, composed of masses of Nocardia species found in the lacrimal canaliculi. SYN: Desmarres dacryoliths.
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dac·ryo·lith 'dak-rē-ə-.lith n a concretion formed in a lacrimal passage
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dac·ryo·lith (dakґre-o-lith″) [dacryo- + -lith] a concretion in the lacrimal sac or duct; called also lacrimal calculus.Medical dictionary. 2011.