A shape composed of equal sized, side-adjacent squares. Also called a region, sub-grid or mini-grid. Polyominos are named by size: 5 = pentomino, 7 = heptomino, 9 = nonomino.
a collection of squares of equal size arranged with coincident sides
a connected array of identical squares having the property that any two squares either do not touch or else meet along an entire, common edge
a figure made of solidly connected squares
a generalization of a domino whereby the shape is formed by gluing together unit squares
a piece made up entirely of squares connected edge-to-edge
a polygon formed by joining squares edge to edge
a polygon made up of squares joined edge-to-edge
a "rook"-connected set of equal squares
a shape that consists of unit squares pasted together
a simply connected set of equal-sized squares, each joined to at least one other along an edge
a figure composed of a subset of a square grid, the square making up the polyomino being joined by common edges. Some polyominos are rep-tiles and IFS attractors.
A polyomino is a polyform with the square as its base form. It is constructed by placing a number of identical squares in distinct locations on the plane, keeping the shape connected, and in such a way that at least one edge of each square coincides with an edge of one of the other squares. Polyominoes with from 1 to 6 squares are called respectively monominoes, dominoes, trominoes (or triominoes), tetrominoes, pentominoes and hexominoes.
