noun
- floating devices that detect underwater sounds and transmit acoustic data, typically used for submarine detection
Usage: military; naval
Examples
- The naval aircraft dropped sonobuoys in a grid pattern to search for enemy submarines.
- Modern sonobuoys can transmit data for several hours before their batteries expire.
- The crew analyzed the acoustic signals received from the sonobuoys.
- Anti-submarine warfare relies heavily on networks of sonobuoys.
- The sonobuoys detected unusual underwater activity in the area.
- Each sonobuoy contains sensitive hydrophones to pick up submarine sounds.