A "doughnut shape" refers to a circular object with a hole in the center, like a traditional doughnut. It describes something that is round and hollow in the middle. Full definition
Running alongside the EY Late Turner exhibition until the 25th of January, this new series of paintings in the form of doughnut shaped canvases are Eliasson's response to these seven works by J.M.W. Turner. (candidmagazine.com)
Doughnut batter is extruded into little doughnut shapes that ride up and down through a temperature and humidity controlled booth to activate the yeast. (topsecretrecipes.com)
Cut out doughnut shapes with a doughnut cutter, or fashion your own! (maplespice.com)