Sonar
/ˈsoʊ.nɑːr/noun
A technique for detecting and locating objects underwater using sound waves.
Did you know?The science behind sonar dates back to ancient times when humans first used sound for navigation and hunting, tapping into the earth's hidden frequencies.
Etymological Timeline
Proto-Indo-European
PIE
*sū̆nō
“to sound, to call out”
Latin
Latin
sonus
“sound, noise, or tone”
Old French
Old French
son
“sound, noise”
Middle English
Middle English
sonde
“a probe or instrument for measuring or sounding”
20th Century
English
sonar
“a method for detecting objects underwater using sound waves”