define ion Share with your friends Share 4 Priya Singh answered this please follow the link:- https://www.meritnation.com/ask-answer/question/what-is-ion/science/6533270 0 View Full Answer Tara Raturi answered this Any charged particle is called an ion. Thumbs up please :) 11 Asnath answered this An atom or molecule with net electric charge due to either loss or gain of electrons=Ion 4