po·ny·tail 
(pōnē-tāl′)
(pōnē-tāl′)n.
A gathering of hair that is fastened close to the head so that the hair hangs down like a pony's tail.
pony·tailed′ adj.
- progesterone
- progestin
- progestogen
- proglottic
- proglottid
- proglottidean
- proglottis
- prognathic
- prognathism
- prognathous
- prognosis
- prognostic
- prognosticate
- prognostication
- prognosticative
- prognosticator
- prograde
- program
- program director
- programed
- programer
- programing
- programmability
- programmable
- programmatic