G2E1O1P3H4O1N1E1
14 points
GEOPHONE is validvalid
a device that detects vibrations in the earth [n GEOPHONES]
(tradename) an instrument used to pick up vibrations passing through soil, rocks or ice [n -S]
a device that detects vibrations in the earth [n GEOPHONES]
(tradename) an instrument used to pick up vibrations passing through soil, rocks or ice [n -S]