graupel definition by Webster's New World
Origin: German ; from graupeln, to sleet ; from graupelein, diminutive of graupe, hulled barley, granule of ice ; from Slavic, Slavonic as in Polish Serbian krupa, kernel of grain, hail ; from Indo-European an unverified form kreup-, scab, fragment (from source Old Norse hrufa, scale) ; from base an unverified form kreu-, to break from source rue
graupel definition by American Heritage Dictionary
Origin: German Graupel, diminutive of Graupe, hulled grain, probably of Slavic origin; akin to Russian krupa, groats.
graupel - Science Definition