skim

SKIM, noun (a different orthography of scum; Scum; the thich matter that forms on the surface of a liquor. SKIM, verb transitive 1. To take off the thick gross matter which separates from any liquid substance and collects on the surface; as, to skim milk by taking off the cream. 2. To take off by skimming; as, to skim cream. 3. To pass near the surface; to brush the surface slightly. SKIM, verb intransitive 1. To pass lightly; to glide along in an even smooth course, or without flapping; as, an eagle or hawk skims along the etherial regions. 2. To glide along near the surface; to pass lightly. 3. To hasten over superficially or with slight attention. They skim over a science in a superficial survey.