D defs.my
Entry 2 senses Webster, 1913

Cystolith

/(s?s"t?-l?th)/ · Cys·to·lith · IPA
01 n. A concretion of mineral matter within a leaf or other part of a plant.
  1. 1.
    A concretion of mineral matter within a leaf or other part of a plant.(Bot.)
  2. 2.
    A urinary calculus.(Med.)