资料来源 : Webster's Revised Unabridged Dictionary (1913)

Grooving \Groov"ing\, n.
   The act of forming a groove or grooves; a groove, or
   collection of grooves.

资料来源 : WordNet®

grooving
     n : the cutting of spiral grooves on the inside of the barrel of
         a firearm [syn: {rifling}]