Cosmitron


 * ''A cosmotron is a transformer internal organ in the Sunbow portion of the Generation One continuity family.

A cosmotron is a piece of Cybertronian technology of unspecified function. What is known is that Optimus Prime's cosmotron was severely damaged during a battle with the Decepticons, and the Autobot leader surely would have perished if his cosmotron had not been replaced, suggesting that whatever purpose it serves is a vital one.