(snō) noun
1. Precipitation taking the form of minute ice crystals formed from an aqueous vapor in the air when the temperature is below 32^o F., and usually falling in irregular masses or flakes. ♦ Collateral adjective: nival.
2. A similar aggregation that resembles snow in being white or composed of flakes: a snow of blossoms.
3. A fall of snow; snowstorm.
4. A winter.
5. Slang Cocaine.
6. The pattern of snowlike drops appearing on a television screen as a result of weakened signals in a receiver.
—v.i.
1. To fall as snow: usually used impersonally: It is snowing.
—v.t.
2. To scatter or cause to fall as or like snow.
3. To cover, enclose, or obstruct with snow: with in, over, under, or up. [OE snāw]
Snow may appear as a combining form in hyphemes or solidemes, or as the first element in two–word phrases; as in:

(snō) noun Naut.
A two–masted square–rigged vessel characterized by having a trysail mast close behind the main mast. [<MDu. snauw snout]

(snō), C(harles) P(ercy),
born 1905, English physicist and novelist.