sonar.
Artificial echolocation by use of electronic equipment, with hydrophones to locate objects underwater, using the same wave-analysis principles that radar uses.
Meaning & usage
Artificial echolocation by use of electronic equipment, with hydrophones to locate objects underwater, using the same wave-analysis principles that radar uses.
They were able to detect the sunken wreck using sonar.
A device that provides such echolocation.
They finally bought a new sonar to replace the 40-year-old unit that sometimes didn't work right.
Any echolocation.
Submarines and bats both use sonar to navigate.
Where this word comes from
By anacronymic evolution from SONAR.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.