circularity
disk shape

Both objects were of a flattened disk shape with a dark area to [their] right.

The brothers came and found the cat had dried out in the sun into a disk shape.

That planet shone deep, chlorophyll green on the screens long before it had grown enough to assume a recognizable disk shape.

Place on a piece of plastic wrap and flatten into a disk shape.

The fins of the ray create a disk shape that can be round, triangular, or diamond-shaped.

These tubes are often fairly durable and come in either donut or disk shapes.

At other times, the sun god, in various forms, is depicted inside the disk shape as if enclosed within it.

This bed over here has spires and disk shapes and feathery things.

The disk shape reduces the space between particles, which should allow electrons to hop more easily between them.

The disk shape is given by the circular aperture of the pupil.