This appears as a roughly circular region with echoes that show little spatial continuity.

Balloons deform into a circular region of contact.

These narrow circular regions correspond to Jupiter's main auroral ovals.

Cells within circular regions within the perithallus lengthen to form sexual conceptacles, leaving long, wefty cells around the walls of the conceptacle.

A pyranometer was used to measure irradiance from a circular region of sky around the sun, excluding the sun itself.

About 360 km across, it is situated in the south western part of Galileo Regio, a huge almost circular dark region on Ganymede's north eastern flank.

A uniform Gaussian kernel can be thought of as an isotropic, circular region.

Ground clutter generally appears in a circular region within a radius of about 25 miles near ground-based radar.

Within the pericarp is a sky-blue downward pointing triangle, within which there is a circular region that is white, like the full-moon.

Across a broad circular region the geodesic network was disrupted.