Definition of "magic square" []

• A square that contains numbers arranged in equal rows and columns such that the sum of each row, column, and sometimes diagonal is the same. (noun)
• A similar square containing letters in particular arrangements that spell out the same word or words. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Of course the good folk of Tesseract World insisted on feting them all with a great party, and they insisted on learning how this marvelous magic square dance was performed."