graupel

snowflakes that become rounded pellets due to riming; typical sizes are 2 to 5 millimeters in diameter (0.1 to 0.2 inch); graupel is sometimes mistaken for hail.
Found on https://www.encyclo.co.uk/local/10133

Graupel

A type of precipitation that consists of a snow crystal and a raindrop frozen together. Also called snow pellets.
Found on http://www.physicalgeography.net/physgeoglos/g.html

Graupel

Small pellets of ice created when supercooled water droplets coat, or rime, a snowflake. The pellets are cloudy or white, not clear like sleet, and often are mistaken for hail.
Found on http://www.encyclo.co.uk/local/22268

Graupel

Precipitation formed when super cooled water droplets collide and freeze.
Found on http://www.metcheck.com/OTHER/glossary.asp

graupel

aka snow pellets
Found on http://snowheads.com/ski-forum/viewtopic.php?p=1814856

Graupel

A form of frozen precipitation consisting of snowflakes or ice crystals and supercooled water drople
Found on http://www.superglossary.com/Glossary/Science/Weather/

graupel

frozen rain or snowflakes
Found on http://phrontistery.info/g.html
No exact match found