p.pr. & ·vb.n. of boom.
2. booming ·adj advancing or increasing amid noisy excitement; as, booming prices; booming popularity.
3. booming ·adj rushing with violence; swelling with a hollow sound; making a hollow sound or note; roaring; resounding.
4. booming ·noun 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.