dumb hole

Noun

Meaning

dumb hole (plural dumb holes)

A phenomenon in which phonons (sound perturbations) are unable to escape from a fluid that is flowing more quickly than the local speed of sound.

Source: en.wiktionary.org

Synonyms

sonic black hole

Close letter words and terms

dumb fucker dumb genius dumb heiress dumb idea dumb insolence dumb like a fox