[{"Bold_text": "noun", "List Items": ["a large, flightless, ratite bird,Emu(Dromaius)novaehollandiae,of Australia, resembling the ostrich but smaller and having a feathered head and neck and rudimentary wings."]}, {"Bold_text": null, "List Items": ["Also electromagnetic unit electromagnetic unit.", "Aerospace. extravehicular mobility unit extravehicular mobility unit."]}]