Freebase(0.00 / 0 votes)Rate this definition: Imagism was a movement in early 20th-century Anglo-American poetry that favored precision of imagery and clear, sharp language. It has been described as the most influential movement in English poetry since the activity of the Pre-Raphaelites.
The Spring Trigger. A spring trigger is actually a small spring with a threaded end that replaces the hard trigger on specially made index-triggered releases. Because it bends when you pull it, the spring is very difficult to punch. Your only recourse is to keep pulling as you continue to aim at the spot you want to hit.
On a revolver, a double action trigger means that when you squeeze the trigger, the trigger actually moves the hammer to the rear of the pistol, then releases it to act just like the single action pistol. On some revolvers, it's possible to manually pull the hammer back, locking it into a single action mode.n operation, a single action weapon must be ****** before each shot. In other words the hammer must be pulled all the way to the rear where it will catch on an internal part. The weapon is now ready to fire and when you apply pressure to the trigger it will cause that internal part to move.