Definition of "doughnut-shaped" [doughnut-shaped]

• Shaped like a ring (adjective)

WordNet. Princeton University. 2010.

• "A doughnut-shaped phenomenon photographed by a retired RAF officer and sent to his old bosses tasked with investigating UFOs."
• "Then came the terrible boom, magnified in the doughnut-shaped chamber."
• "The corporation initially decided to sell Television Centre in 2007, just before the economic downturn, but only in November appointed commercial property consultants Lambert Smith Hampton to market the doughnut-shaped center and several other buildings occupying a 14-acre site in London."