concretion
英
美
n. 凝固物；固结物，凝块，凝固；固结; 固结的程度；凝结度; 具体（化）
复数：concretions
BNC.30960
英英释义
noun
- the union of diverse things into one body or form or group
- an increase in the density of something
- a hard lump produced by the concretion of mineral salts
- renal calculi can be very painful
- the formation of stonelike objects within a body organ (e.g., the kidneys)