■ noun a device for determining the depth of the seabed or detecting objects in water by measuring the time taken for echoes to return to the listener.
Derivatives
echo-sounding noun
■ noun a device for determining the depth of the seabed or detecting objects in water by measuring the time taken for echoes to return to the listener.
Derivatives
echo-sounding noun
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004