snow grains
noun
1.
precipitation consisting of white, opaque ice particles usually less than one millimeter in diameter.
Origin
1960-65
Examples from the web for
snow grains
snow grains
clump together, and they reflect less light than the many-faceted, smaller crystals.
Except for the idealized shapes of individual
snow grains
, the model is plane parallel.
Frozen precipitation was defined as pure snow or
snow grains
.
Snow was defined as pure snow or
snow grains
, while rain was comprised of pure rain or drizzle.
They can be distinguished from ice pellets, because ice pellets bounce and
snow grains
do not bounce at all.