n. A concretion of mineral matter within a leaf or other part of a plant.
n. A urinary calculus.
the GNU version of the Collaborative International Dictionary of English
n. A concretion of mineral matter within a leaf or other part of a plant.
n. A urinary calculus.
The Century Dictionary and Cyclopedia
n. A peculiar concretion formed within the cells of certain plants, composed chiefly of crystals and attached to the wall of the cell by a short pedicel.
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