Which term refers to rain freezing before it reaches the ground?

Rain is precipitation that falls to the surface of the Earth as water droplets. Raindrops form around microscopic cloud condensation nuclei, such as a particle of dust or a molecule of pollution. Rain that falls from clouds but freezes before it reaches the ground is called sleet or ice pellets. Even though cartoon pictures of raindrops look like tears, real raindrops are actually spherical.

Source: National Geographic