You searched for: “annular
1. Shaped like or forming a ring.
2. In mining engineering, the space between the casing and a wall of a hole or between a drill pipe and casing.
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annular eclipse
1. A solar eclipse in which a ring (an annulus or the figure bounded by and containing the area between two concentric circles) of solar photosphere remains visible.
2. The type of eclipse seen when the moon is too far from the earth at the time of a solar eclipse to completely cover the sun's disk.

The result is a bright ring, or annulus, of light encircling the moon.

This entry is located in the following unit: Astronomy and related astronomical terms (page 2)