si·no·a·tri·al 
(sī′nō-ātrē-əl)
(sī′nō-ātrē-əl)adj.
Of or relating to the sinoatrial node: a sinoatrial heart block.
[SIN(US) + ATRIAL.]
- profusion
- progenitor
- progenitor cell
- progeny
- progeria
- progestational
- progesterone
- progestin
- progestogen
- proglottic
- proglottid
- proglottidean
- proglottis
- prognathic
- prognathism
- prognathous
- prognosis
- prognostic
- prognosticate
- prognostication
- prognosticative
- prognosticator
- prograde
- program
- program director