ELI5: Explain Like I'm 5

Polyominoid

Okay kiddo, let me explain to you what a polyominoid is. Have you ever played with blocks or puzzles where you have to fit pieces together to form a shape? A polyominoid is like that, but it's a more complicated shape. It's made up of smaller shapes, kind of like puzzle pieces, called polyominoes.

Polyominoes are pieces that have the same shape as a rectangle, but the size can be different. For example, a square is a polyomino, but so is a long thin rectangle. Now when you take a bunch of these polyominoes and fit them together to make a bigger shape, that's called a polyominoid.

Polyominoids can be really cool because they can be different shapes and sizes, and you can make them into all kinds of designs. Some people like to make polyominoids into art, while others like to use them for puzzles or games.

It's important to remember that a polyominoid is made up of multiple pieces that are all connected together to make one big shape. So, when you're playing with a polyominoid, you have to be careful not to lose any of the pieces or the whole shape won't work anymore.

So there you have it, a polyominoid is just a fancy word for a bunch of polyomino puzzle pieces that are all put together to form a big shape, kind of like a puzzle. It's a fun way to be creative and make all kinds of cool designs.