nucleation


nucleation
Process of forming a nidus (4).
- heterogeneous n. n. about a nidus composed of material other than that precipitating.
- homogeneous n. n. about a nidus composed of material identical with that precipitating.

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nu·cle·a·tion .n(y)ü-klē-'ā-shən n
1) the formation of nuclei
2) the action of a nucleus in starting a process (as condensation, crystallization, or precipitation)

Medical dictionary. 2011.