cetacean cetaceanorder of mammals that includes whales, dolphins and porpoises Related Articles: Glossary: delphinidGlossary: dialectGlossary: MysticetesGlossary: passive acoustic monitoring (PAM)Biological OceanographerHot Topic - Guidance on Determining Potential Effects to Marine Mammal HearingHot Topic - Mass StrandingHot Topic - Monitoring Wind Farm ConstructionHot Topic- Seismic AirgunsChanges in Baleen Whale Vocalizations Chris Knowlton2018-01-22T22:01:23-05:00