'Grooving' definitions:

Definition of 'grooving'

From: WordNet
noun
The cutting of spiral grooves on the inside of the barrel of a firearm [syn: grooving, rifling]

Definition of 'Grooving'

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