Pentomino

//pɛnˈtɒmɪnəʊ//

"Pentomino" in a Sentence (1 examples)

If a domino had four squares on its surface, it would be a tetromino. With five squares, it would be a pentomino—nine, a nonomino, eleven, an unwieldy undecomino!

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.