Accretion

The growth of a precipitation particle by the collision of an ice crystal or snowflake with a supercooled liquid droplet that freezes upon impact.

Accretion Growth of a cloud or precipitation particle by the collision and union of a frozen particle (ice crystal or snowflake) with a super-cooled liquid droplet which freezes on impact.

Process of growth whereby material is added to the outside of nonliving matter. The gradual increase in flow of a stream attributable to seepage, ground water discharge, or tributary inflow.

The growth of a precipitation particle by the collision of a frozen particle with a supercooled liquid water droplet which freezes upon impact.