dumb hole

English

Etymology

Similar to black hole, formed with dumb (“mute, silent”). Used at least since 1994.[1]

Pronunciation

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Noun

dumb hole (plural dumb holes)

  1. 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.

Synonyms

  • sonic black hole

References

  1. ^ W. G. Unruh (1994) “Dumb Holes and the Effects of High Frequencies on Black Hole Evaporation”, in (Please provide the book title or journal name)‎[1]
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