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Meaning of sonar
The primary meaning of the word "sonar" is a technique used to navigate, communicate with or detect objects on or under the surface of the water by sending out sound waves.
Etymology of sonar
The word "sonar" is an acronym for Sound Navigation And Ranging, which was coined in the 1940s.
It originated from the combination of the words "sound" and "navigation" with the suffix "-ar" from "radar" (Radio Detection And Ranging).
Synonyms
echo sounding
radar
navigation
detection
location
tracking
ranging
surveying
mapping
sounding
profiling
bathymetry
seismology
hydroacoustics
acoustics
geophysics
remote sensing
telemetry
monitoring
surveillance
exploration
investigation
scanning
probing
imaging
sensing
localization
orientation
piloting
plotting
charting
mapping
sonobuoy
fathometer
depth sounding
underwater exploration
Definitions
- A method of detecting and locating objects underwater by emitting high-frequency sound waves and measuring the time interval between emission and reception of the waves.
- * A system using this method, typically used for navigation, fishing, or submarine detection.
Usage Examples
- The submarine used sonar to detect and avoid obstacles underwater.
- * The fishermen employed sonar to locate schools of fish in the deep waters.
- * The navy utilized sonar technology to track enemy submarines during the war.