1. a long, ribbon-like marine fish with a compressed body, found in deep waters
Usage: zoological

Examples

• The dealfish is rarely seen near the surface of the ocean.
• Marine biologists studied the dealfish specimen found washed ashore.
• The dealfish can grow up to several feet in length.
• Deep-sea fishing nets occasionally catch dealfish by accident.
• The dealfish’s silvery body reflects light in the dark ocean depths.