1. a marine fish with elongated dorsal and anal fins that resemble additional tail fins

Examples

• The tripletail is prized by sport fishermen for its fighting ability.
• We spotted a large tripletail swimming near the floating debris.
• The tripletail’s unique fin structure makes it easily recognizable.
• Commercial fishermen often catch tripletail in warm coastal waters.
• The restaurant featured grilled tripletail as the daily special.
• Tripletail can grow to impressive sizes in the Gulf of Mexico.