The phrase "aiming reticle" refers to a small crosshair or target that helps you aim at something accurately, often used in video games or telescopic sights. Full definition
You have to aim a reticle at them to dispatch them in time with some incredible thumping beats. (pocket-lint.com)
Yes there is an option to turn on aim assist, but no matter what I did I still had to aim my reticle perfectly in order to hit targets. (dagersystem.com)
Sometimes you might aim at the hand - dandy aiming reticle which shows you how far ahead to aim, pull the trigger and watch as nothing happens to the enemy health bar. (wolfsgamingblog.com)