1. [n]  reading or glancing through quickly
2. [adj]  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"
3. [v]  read superficially
4. [v]  move or pass swiftly and lightly over the surface of
5. [v]  remove from the surface; "skim cream from the surface of milk"
6. [v]  coat with a layer; of liquids
7. [v]  cause to skip over a surface; "Skip a stone across the pond"
8. [v]  travel on the surface of water
9. [v]  examine hastily

1. \Skim\, v. t. [imp. & p. p. {Skimmed}; p. pr. & vb. n.
   {Skimming}.] [Cf. Sw. skymma to darken. [root]158. See
   {Scum}.]
   1. To clear (a liquid) from scum or substance floating or
      lying thereon, by means of a utensil that passes just
      beneath the surface; as, to skim milk; to skim broth.
   2. To take off by skimming; as, to skim cream.
   3. To pass near the surface of; to brush the surface of; to
      glide swiftly along the surface of.
            Homer describes Mercury as flinging himself from the
            top of Olympus, and skimming the surface of the
            ocean.                                --Hazlitt.
   4. Fig.: To read or examine superficially and rapidly, in
      order to cull the principal facts or thoughts; as, to skim
      a book or a newspaper.
   

2. \Skim\, v. i.
   1. To pass lightly; to glide along in an even, smooth course;
      to glide along near the surface.
            Not so when swift Camilla scours the plain, Flies
            o'er the unbending corn, and skims along the main.
                                                  --Pope.
   2. To hasten along with superficial attention.
            They skim over a science in a very superficial
            survey.                               --I. Watts.
   3. To put on the finishing coat of plaster.
   

3. \Skim\, a.
   Contraction of {Skimming} and {Skimmed}.
   {Skim coat}, the final or finishing coat of plaster.
   {Skim colter}, a colter for paring off the surface of land.
   {Skim milk}, skimmed milk; milk from which the cream has been
      taken.
   

A Scheme implementation with packages and other enhancements, by Alain Deutsch et al, France.