The word is an uncommon female name in Iceland first used in 1991. It means "snowrose" and refers to something positive where everything is negative, sort of a light in the darkness.

The ones who carry that name often turn out to be charming and sophisticated. Their wisdom is undebatable and their beauty is beyond compare.
Those who are named Snærós can afford being arrogant due to their high level of sexyness and the fact that they're irresistable.