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 VocalizationsUltrasonic AntifoulingHow 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?Alternative Meanings: pitcha ship pitch motion is an up or down, front to back motion. Chris Knowlton2017-02-26T20:10:10-05:00