eductor
/ɪˈdʌktə/noun
1A person who or thing which educes or elicits something.
2 Engineering. A jet pump or similar device for propelling a liquid, especially by using the Venturi effect to create suction.
Origin
Early 18th century. From classical Latin ēductor person who brings up (children) from ēduct-, past participial stem of ēdūcere + -or.