directional directionalproducing or receiving sound only from certain angles or directions Related Articles: Glossary: DIFARGlossary: projector arraysGlossary: beamformingHow is sound used to find submarines?Tutorial: Projector (Sound Source)How is sound measured?CTBT Hydrophone StationWhat components of sound are used for hearing?Reference List: Animals and SoundHow do people and animals use sound in the sea? Chris Knowlton2017-02-26T20:09:58-05:00