n squares name
1 squares monomino
2 squares domino
3 squares tromino or triomino
4 squares tetromino
5 squares pentomino
6 squares hexomino
7 squares heptomino
8 squares octomino
9 squares nonomino or enneomino
10 squares decomino
11 squares undecomino
12 squares dodecomino
n squares n-omino
unspecified number
squares
polyomino