
1) Device for draining fluids 2) Dredging pump 3) Jet pump for fluid withdrawal
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https://www.crosswordclues.com/clue/eductor

Venturi device through which water flows under 200 psi pressure to create a partial vacuum in a tube attached at 90-degrees and open to the water stream passing overhead. The vacuum draws liquid foam concentrate from a reservoir, which mixes with the water stream through a metering device on the discharge side of the eductor where a firefighting ho...
Found on
http://en.wikipedia.org/wiki/Glossary_of_firefighting_equipment

• (n.) One who, or that which, brings forth, elicits, or extracts.
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http://thinkexist.com/dictionary/meaning/eductor/
E·duc'tor noun [ Latin , tutor.] One who, or that which, brings forth, elicits, or extracts. « Stimulus must be called an
eductor of vital ether.»
E. Darwin. Found on
http://www.encyclo.co.uk/webster/E/10

Suction device operated by hose pressure to pull fluid from a reservoir and mix it with the hose stream; often used to add foaming or other materials to water streams.
Found on
http://www.translationdirectory.com/glossaries/glossary102.htm

eductor Someone who, or that which, brings forth, elicits, or extracts.
Found on
http://www.wordinfo.info/words/index/info/view_unit/2734/6
No exact match found.