Adhesive Ordnance is a trait in Destiny 2 that can appear on 11 weapons. There is also an enhanced version with a stronger effect.
What Adhesive Ordnance does
Collecting ammo loads an explosive round that adheres to surfaces, detonates shortly after impact, and applies exhaust.
Enhanced version
Collecting ammo loads an explosive round that adheres to surfaces, has an improved detonation shortly after impact, and applies exhaust.