The process by which nuclei are formed in solution. The condensation of a single chemical
compound is called
homogeneous nucleation. The simultaneous condensation of more than one compound is called simultaneous nucleation.
The condensation of a compound on a foreign substance is called
heterogeneous nucleation.
Source:
See also:
PAC, 1972, 31, 577
(Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix
II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry)
on page 608