1. plural of humpback whale, a large baleen whale with long flippers and distinctive humped back
2. plural of humpback, referring to people with abnormally curved spines
Usage: medical; potentially offensive

Examples

• The humpbacks migrate thousands of miles each year.
• We spotted three humpbacks breaching near our boat.
• Humpbacks are known for their complex songs.
• The marine biologist studied humpbacks in Alaska.
• Humpbacks can grow up to 60 feet in length.
• The whale watching tour promised sightings of humpbacks.