nounpl. -·tails· or -·tail·
- any of several ducks, esp. a species (Anas acuta) with a long neck and long, pointed middle tail feathers
- any variety of grouse with a long, pointed tail
nounpl. pintail, or pin·tails
Any of several ducks of the genus Anas having sharply pointed tails, especially A. acuta, found throughout the Northern Hemisphere.
- A dabbling duck, Anas acuta, of the northern hemisphere that has a long pointed tail.