The term "power reversal ejector" can be quite technical and specific, but there are several synonyms that are more accessible and descriptive. One option is "thrust reverser," which specifically refers to a device used to reverse the thrust of an aircraft's engines, slowing it down after landing. Another synonym is "ejection seat," which refers to a system designed to quickly remove a pilot or crew member from an aircraft in an emergency situation. Additionally, the term "force multiplier" could be used to describe any device or system that enhances the power or effectiveness of a given operation or process.