Wiktionary
a. Resembling a doughnut.
Usage examples of "doughnutlike".
Immense doughnutlike tires of a big truck had cut deep into the soft earth.
This sliced through first one and then the other of the huge, double doughnutlike tires under the moving van.
Jilly had crafted a firm foam pillow, a ramped version of the doughnutlike seat provided to patients following hemorrhoid surgery, which prevented the bottom of the pot from scarring the passenger's-seat upholstery and which provided Fred with a level ride.
Before you get caught up in trying to make sense of this perplexing union, Gross and his collaborators showed that the extra 16 dimensions on the bosonic side must be curled up into one of two very special higher-dimensional doughnutlike shapes, giving rise to the Heterotic-O and Heterotic-E theories.
They were L-shaped objects connected by springy, gummed-f abric tubing to the doughnutlike gas cylinders (containing carbon dioxide liquid under great pressure) that had been adjusted about his waist.