tetrominoide

Tetrominoide is a term used in the context of polyominoes, which are geometric shapes composed of squares, connected edge-to-edge. The term "tetrominoide" refers to a polyomino that is similar in structure to a tetromino, but not necessarily composed of four squares. Tetrominoes are a subset of polyominoes that consist of exactly four squares. The most well-known tetrominoes are the shapes used in the video game Tetris, which include the straight line, square, T-shape, L-shape, and its mirror image. Tetrominoides, on the other hand, can vary in size and shape, but they retain the characteristic of being composed of squares connected edge-to-edge. This term is useful in discussions about polyominoes and their properties, as it allows for the consideration of shapes that are similar to tetrominoes but not limited to the traditional four-square configuration.