[{"Bold_text": "noun", "List Items": ["a person or thing that ejects .", "(in a firearm or gun) the mechanism that after firing throws out the empty cartridge or shell.", "Also called eductor .a device for inducing a flow of a fluid from a chamber or vessel by using the pressure of a jet of water, air, steam, etc., to create a partial vacuum in such a way as to entrain the fluid to be removed.", "any of various devices for removing work from a machine or die."]}]