pitch pitchan up-or-down movement of the front (bow) of a vessel (ship, glider, etc.). Related Articles: Glossary: whistlesGlossary: pitchGlossary: spectrumChanges in Baleen Whale VocalizationsHow do marine animals use sound?Individual-specific VocalizationsHow is sound used to study marine mammal distribution?How is sound used to measure rainfall over the ocean?How do you characterize sounds?How is sound used to measure wind over the ocean? Chris Knowlton2017-02-26T20:10:10-05:00