beating
1. A hand operation of flattening the leaves or
sections of a book before sewing, the purpose of
which is to compress or, in the process of
rebinding, to remove the backing shoulders. See:KNOCKING OUT THE
GROOVE . Books are seldom beaten today. See:
BUNDLING (1) ; NIPPING (1) ; SMASHING . 2. The
process of swelling and separating the fibers and
fibrils of rags, wood pulp, etc., either batchwise
or in a BEATER ,
or by passage through a REFINER . (261 , 350 )