sanding
1. The process of rubbing down the edges of a book
with fine sandpaper, or a sanding machine, so as
to remove as small an amount of margin as
possible. 2. The process of sanding down the paper
or leather spine lining of a book to make it
smooth, chiefly so that no undulations or lumps
will be seen under the leather covering. 3. The
process of sanding the edges of book boards to
impart smoothness.