·adj Banded or marked with circles.
II. Annular ·adj Pertaining to, or having the form of, a ring; forming a ring; ringed; ring-shaped; as, annular fibers.
Resembling an annulus or ring. An annular eclipse takes place when the apparent diameter of the moon...
The Sailor's Word-Book
A contrivance for fitting scuppers so that the whole can be enlarged by a movable concentric ring, i...