n.
1.the formation of stonelike objects within a body organ (e.g., the kidneys)
2.a hard lump produced by the concretion of mineral salts
3.an increase in the density of something
4.the union of diverse things into one body or form or group
Idiom of the Day
in arms
armed, angry and ready to fight
The workers are in arms since they learned about the wage decrease.