1. a scientist who studies whales, dolphins, and porpoises
Usage: from Greek ketos (whale) + -ologist (one who studies)

Examples

• The cetologist spent years researching humpback whale migration patterns.
• Marine biologists and cetologists work together to protect endangered dolphin species.
• Dr. Chen is a renowned cetologist who has published numerous studies on sperm whale behavior.
• Cetologists use underwater microphones to record whale songs and communication.
• The cetologist's research revealed new information about orca social structures.
• Many cetologists advocate for stricter ocean conservation policies.