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echometer

noun
echo·me·ter | \ˈekōˌmētə(r)\
plural -s

Definition of echometer 

: an apparatus for measuring depths of objects in water or underground by timing the echoes of sound reflected from them

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History and Etymology for echometer

echo entry 1 + -meter

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Dictionary Entries near echometer

echoless

echolocate

echolocation

echometer

echo organ

echoppe

echo ranging

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