concretion
(noun)
noun
1. the formation of stonelike objects within a body organ (e.g., the kidneys)
Definition categories: process, action, activity
2. a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body
Similar word(s): calculus
Definition categories: object, rock, stone
3. an increase in the density of something
Similar word(s): compaction, compression, densification
Definition categories: event, concentration
4. the union of diverse things into one body or form or group; the growing together of parts
Similar word(s): coalescence, coalition, conglutination
Definition categories: act, conjugation, jointure, unification, union, uniting