The term 'doughnut shape, in math' can be summarized as a torus, which is a five-letter word. A torus is a three-dimensional shape that is formed by rotating a circle around an axis that is perpendicular to the plane of the circle. It is also known as a doughnut shape due to its similarity to the popular pastry. In mathematics, a torus is used to describe a variety of shapes and surfaces, including those with holes or tunnels.