Noun
The process of concreting; the process of uniting or of becoming united, as particles of matter into a mass; solidification.
A mass or nodule of solid matter formed by growing together, by congelation, condensation, coagulation, induration, etc.; a clot; a lump; a calculus.
A rounded mass or nodule produced by an aggregation of the material around a center; as, the calcareous concretions common in beds of clay.
Source: Webster's dictionaryrenal calculi can be very painful Source: Internet
Likewise it is the concretion or realization of potentialities of other actual entities which are its partial causes. Source: Internet
The setting is inwardness in existing as a human being; the concretion is the relation of the existence-categories to one another. Source: Internet
ISBN 0-306-46365-2 Where it remains even after the passage of time, the iron or steel hull is often fragile with no remaining metal within the layer of concretion and corrosion products. Source: Internet
Similarly, naturally occurring arches of stone form by the weathering away of bits of stone from a large concretion that has formed previously. Source: Internet