1. a large dolphin with a blunt rounded head, also called a killer whale or orca
2. any of various other large dolphins or small whales
Usage: zoological

Examples

• The grampus is actually the largest member of the dolphin family.
• Marine biologists spotted a pod of grampuses near the coast.
• The grampus can grow up to 32 feet in length.
• Sailors once feared encounters with grampuses in open waters.
• The aquarium’s grampus performed impressive jumps during the show.
• Grampuses are highly intelligent marine mammals.