1. having a tail that tapers to a sharp point
Usage: commonly used in ornithology to describe certain duck species

Examples

• The pintailed duck is recognizable by its long, slender neck and pointed tail feathers.
• Birdwatchers spotted a pintailed pheasant in the wetland preserve.
• The pintailed design of the aircraft reduced air resistance.
• She admired the pintailed silhouette of the bird against the sunset.