sonar, echo sounder, asdic(noun)
a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return
"sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee"
The numerical value of echo sounder in Chaldean Numerology is: 7
The numerical value of echo sounder in Pythagorean Numerology is: 1
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"echo sounder." Definitions.net. STANDS4 LLC, 2017. Web. 20 Jul 2017. <http://www.definitions.net/definition/echo sounder>.