pintail

Short definition from Wiktionary

Noun

1. 1
   A pintail duck, a type of dabbling duck with a characteristic pointed tail.
2. 2
   A pintail duck, a type of dabbling duck with a characteristic pointed tail: A northern pintail, Anas acuta, a dabbling duck of the northern hemisphere that has a long pointed tail.
3. 3
   A pin-tailed snipe, Gallinago stenura.
4. 4
   Any of various species of libellulid dragonfly of the genus Acisoma, endemic to Africa and Asia.
5. 5
   The end of a fastening pin or mandrel on a Huckbolt or pop rivet that is broken off when installation is complete.
6. 6
   A surfboard with a pointed back end.