1. a long, ribbon-like marine fish with a red dorsal fin, found in deep ocean waters
Usage: marine biology

Examples

• The oarfish is the world’s longest bony fish, reaching lengths of up to 36 feet.
• Scientists rarely see living oarfish because they inhabit deep ocean waters.
• When an oarfish washes ashore, it often creates excitement among marine biologists.
• The oarfish’s distinctive red dorsal fin runs along most of its body length.
• Folklore suggests that oarfish appearances near the surface predict earthquakes.
• The giant oarfish specimen was displayed at the natural history museum.