pul·sa·tor 
(pŭlsā′tər, pŭl-sā-)
(pŭlsā′tər, pŭl-sā-)n.
A pulsating device or machine.
- extraconstitutional
- extracorporeal
- extracorporeally
- extracranial
- extract
- extractable
- extractible
- extraction
- extractive
- extractively
- extractor
- extracurricular
- extraditable
- extradite
- extradition
- extrados
- extraembryonic
- extragalactic
- extrahepatic
- extra-high voltage
- extrajudicial
- extrajudicially
- extralegal
- extralegally
- extramarital