noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   a transducer that converts underwater sound waves into electrical signals, rather like a microphone

Synonyms

All synonyms

phone

Example

More examples

"A hydrophone is a microphone designed to be used underwater."

Etymology

From hydro- + -phone.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.