Gratias Ago Vos. Gratias Ago Vos. On the new statue (well, not more than a few months old) in the pond in Wizard City Commons, the inscription on the statue reads Gratias Ago Vos. By correct Latin grammar it should be Gratias Ago Vobis. Just saying.
Noun. 1. anion-a negatively charged ion. ion-a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons. hydroxide ion, hydroxyl ion-the anion OH having one oxygen and one hydrogen atom.
Summary. Anions are negatively charged ions, and are often formed from atoms or molecules that have more electrons than protons. Anions often combine with cations to make salts, which are important in the human body.