acoustical surveillance


the collecting or recording of information by sound-detection methods and devices, as for intelligence purposes.

Nearby words

  1. acoustic stria,
  2. acoustic theodolite,
  3. acoustic torpedo,
  4. acoustic trauma deafness,
  5. acoustical cloud,
  6. acoustical tile,
  7. acoustician,
  8. acoustics,
  9. acoustimeter,
  10. acoustoelectric Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019