Then they each grabbed hold of a white disk.

Do you have some kind of white disk hidden inside here?

Part of the job involved testing with a little white disk that the students would suspend in the water.

She looked out the window at the Earth, now just a tiny blue and white disk in the void.

This is the typical white disk found washed up on beaches.

The most distinct part of this pattern is a central, nearly white disk.

As he watched, the white disk of the sun appeared.

There ahead of them was a great white disk.

The black and white disk above the centre shows the moon's phase.

The edge of a huge white disk was showing above the horizon.