"nucleation mechanism" refers to the process or way in which tiny particles (called nuclei) are formed or created from a larger substance. These nuclei act as starting points or seeds for further growth or transformation. Full definition
S15) and suggests a similar nucleation mechanism for these minerals. (science.sciencemag.org)
Under different environmental conditions, different nucleation mechanisms may be at work. (realclimate.org)
Despite extensive research, we still lack a quantitative understanding of the nucleation mechanism and the possible role of cosmic rays, creating one of the largest uncertainties in atmospheric models and climate predictions. (nature.com)