Anion: A negatively charged ion. Pronounced an-I-on. An anion is as opposed to a cation, which is a positively charged ion. From Women's Health Resources What's Living in Your Dirty Sheets?Calculate Your BMI HereFast Relief From Migraines: CGRP Inhibitors Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew
