1. Violent and uncontrolled anger.
  2. A fit of violent wrath.
  3. Violent action (as of wind or sea).
  4. An intense feeling.
  5. A fad pursued with intense enthusiasm.
  6. (verb) To be in tumult.

The emotion of Rage is found in the both the Gall Bladder and the Liver meridians in the Wood element.

Definition from Dictionary by Merriam-Webster.