The central circular area, known as the "donut", is listed and has featured in decades of BBC programmes.
The eye is the roughly circular area of relatively light winds in the middle of a storm.
Agricultural land-use was classified in a circular area of 500 m around each colony.
The third method is based on photobleaching a predefined circular area with a specific radius.
The well field is simplified by a circular area with uniformly distributed pumpage.
She and Mr. Johnson were able to determine the approximate location of the flash, a circular area with a radius of about 20 miles.
On a beach, each male fiddler has a small territory, a circular area perhaps eight inches in diameter with a burrow in the center.
Chain-link fence about six feet high and reinforced at the bottom with coarse-woven black nylon fabric enclosed a circular area about eighty steps across.
Hsu gently lances a small, circular area on the right side of O'Neal's lower back, near the top of his buttock.
The self-grown fibrous film covers all the area of the feeding substrate (a circular area of 9.5 cm diameter) after the specific growing period.
The natural movie (540 pixels in diameter) covered a circular area of 2 mm in diameter on the dissected retina (1 pixel = 3.7 μm).
