A neat and gratifying recreation, as my mother's intelligent nephew guessed


Connoisseurs of the art, I am told, take the definition one step further: an anagram has to have a self-referential meaning, and it could be a phrase. They also recognize an "antigram" which contradicts the original word or phrase, and an "ambigram" which can be taken either way depending on how you look at it. A plain old rearrangement of letters into a different word is a "transposal."

TRANSPOSAL