pin·tail 
(pĭntāl′)
(pĭntāl′)n. pl. pintail or pin·tails
Any of several ducks of the genus Anas having sharply pointed tails, especially A. acuta, found throughout the Northern Hemisphere.
- ophicleide
- ophidian
- ophiolite
- ophiological
- ophiologist
- ophiology
- ophiophagous
- ophite
- ophitic
- Ophiuchus
- ophiuroid
- ophthalm-
- ophthalm-
- ophthalmia
- ophthalmic
- ophthalmitis
- ophthalmo-
- ophthalmologic
- ophthalmological
- ophthalmologically
- ophthalmologist
- ophthalmology
- ophthalmoscope
- ophthalmoscopic
- ophthalmoscopical