Definitions

1. adjective

extremely loud or piercingly clear, especially of sound

“The cataphonic music startled everyone in the neighborhood.”

2. noun

a loud or piercing sound

“The cataphonic noise from the construction site made it difficult to study.”

3. noun

a sonic boom or shockwave caused by the breaking of the sound barrier

“The cataphonic sound was heard for miles after the plane broke the sound barrier.”