hydrophone

As nouns the difference between geophone and hydrophone

is that geophone is (geology) a form of microphone that detects and records seismic vibrations while hydrophone is a transducer that converts underwater sound waves into electrical signals, rather like a microphone.

As nouns the difference between hydrophone and transmitter

is that hydrophone is a transducer that converts underwater sound waves into electrical signals, rather like a microphone while transmitter is something that transmits something (in all senses).

As nouns the difference between hydrophone and hydrophobe

is that hydrophone is a transducer that converts underwater sound waves into electrical signals, rather like a microphone while hydrophobe is a hydrophobic compound or material.

As nouns the difference between hydrophone and hydrophore

is that hydrophone is a transducer that converts underwater sound waves into electrical signals, rather like a microphone while hydrophore is an instrument used to obtain specimens of water from any desired depth.

As nouns the difference between hydrophone and hydrophane

is that hydrophone is a transducer that converts underwater sound waves into electrical signals, rather like a microphone while hydrophane is (mineral) a semitranslucent variety of opal that becomes translucent or transparent on immersion in water.

As nouns the difference between hydrophone and transponder

is that hydrophone is a transducer that converts underwater sound waves into electrical signals, rather like a microphone while transponder is a radio or radar transceiver that transmits some signal in response to receiving a predetermined signal.