A polyform is a geometric shape formed by joining copies of a
The best known polyforms are polyominoes,
made from squares.
Solomon W. Golomb coined the term, studied polyominoes extensively,
and published a book
Other plane polyforms include polyiamonds, made from equilateral triangles;
polyaboloes or polytans, made from isosceles right triangles;
polyhexes, made from regular hexagons; and polylines or polysticks,
made from straight lines.
Solid polyforms include polycubes, polyominoids, and polyrhons.
Col. George Sicherman