a member of the Union Army during the American Civil War
national; especially in reference to the government of the United States as distinct from that of its member units; "the Federal Bureau of Investigation"; "federal courts"; "the federal highway program"; "federal property"
characterized by or constituting a form of government in which power is divided between one central and several regional authorities; "a federal system like that of the United States"; "federal governments often evolved out of confederations"
of or relating to the central government of a federation; "a federal district is one set aside as the seat of the national government"
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"