[ri.fling] n (1797) 1: the act or process of making spiral grooves
2: a system of spiral grooves in the surface of the bore of a gun causing a projectile when fired to rotate about its longer axis
[ri.fling] n (1797) 1: the act or process of making spiral grooves
2: a system of spiral grooves in the surface of the bore of a gun causing a projectile when fired to rotate about its longer axis
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012