a thin layer covering the surface of a liquid; "there was a thin skim of oil on the water"
used of milk and milk products from which the cream has been removed; "yogurt made with skim milk"; "she can drink skimmed milk but should avoid butter"
read superficially
remove from the surface; "skim cream from the surface of milk"
coat (a liquid) with a layer
cause to skip over a surface; "Skip a stone across the pond"