Drop breakup

From Glossary of Meteorology

drop breakup

The disruption of raindrops caused primarily by collisions with other raindrops.

The distribution of drop fragments resulting from collisions is a complicated function of drop sizes, but generally the number of fragments increases with drop size. Thus, larger raindrops are more susceptible to breakup. Drop breakup is a limiting factor to the growth of raindrops by the collision–coalescence process.