n.
Pronunciation: ' r ī m
Function: noun
Etymology: Middle English rim, from Old English hr ī m; akin to Old Norse hr ī m frost
Date: before 12th century
1 : FROST 1B
2 : an accumulation of granular ice tufts on the windward sides of exposed objects that is formed from supercooled fog or cloud and built out directly against the wind
3 : CRUST , INCRUSTATION <a rime of snow>