ec·to·py 
(ĕktə-pē)
(ĕktə-pē)n. pl. ec·to·pies
1. The origination of cardiac electrical impulses in myocardium outside of the sinoatrial node. Also called ectopia.
2. See ectopia.
[From New Latin ectopia, displacement; see ECTOPIA.]
ec·topic (-tŏpĭk) adj.