lead·off 
(lēdôf′, -ŏf′)
(lēdôf′, -ŏf′)n.
1. An opening play or move.
2. One that leads off.
leadoff′ adj.
- proglottidean
- proglottis
- prognathic
- prognathism
- prognathous
- prognosis
- prognostic
- prognosticate
- prognostication
- prognosticative
- prognosticator
- prograde
- program
- program director
- programed
- programer
- programing
- programmability
- programmable
- programmatic
- programmatically
- programme
- programmed
- programmed cell death
- programmed instruction