il.lu.vi.a.tion

illuviation的音标和读音：
DJ音标发音： [iˌlu:vi:ˈeiʃən]
KK音标发音： [ɪˌluviˈeʃən]

illuviation的词性：
n.（名词）

1. The deposition in an underlying soil layer of colloids, soluble salts, and mineral particles leached out of an overlying soil layer.
淀积作用：胶状物，可溶性盐和矿物微粒从上层土壤向下层过滤的沉淀过程

illuviation的词源：

2. illuvial [resulting from illuviation] in- ² -luvial [relating to the action of flowing water] as in alluvial
illuvial [由淀积作用形成的] in-² -luvial [与水的流动有关的] 如在 alluvial

3. -ation
-ation