Boom"ing, a. 1. Rushing with violence; swelling with a hollow sound; making a hollow sound or note; roaring; resounding.

O'er the sea-beat ships the booming waters roar.
Falcone.

2. Advancing or increasing amid noisy excitement; as, booming prices; booming popularity. [Colloq. U. S.]

Boom"ing, n. The act of producing a hollow or roaring sound; a violent rushing with heavy roar; as, the booming of the sea; a deep, hollow sound; as, the booming of bitterns. Howitt.