The messages were scrambled and unscrambled by 26 alphabet letters on each circular segment of the wheel.

The area that a circular chord "cuts off" is called a circular segment.

They seemed to be composed of hundreds of circular segments, like giant earthworms.

It refers to the circular segment of earth profile which blocks off long distance communications.

There between 6 and 11 circular segments depending on the genus.

The area of the circular segment is equal to the area of the circular sector minus the area of the triangular portion.

Its main mirror will have only six circular segments surrounding a central one.

The line segment (circular segment) through the centre bisecting a chord is perpendicular to the chord.

Corliss valves are in the form of a minor circular segment, rotating inside a cylindrical valve-face.

In the two sides of the main arch, there are two arches in the shape of circular segments with a small space.