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
pass on (something)
to give away something that you do not use anymore
The girl always passes on her old clothes to her younger sister.