- A ring-shaped reef or island formed of coral - A road tax for string of islands - Circular coral formation - Circular coral reef - Circular reef - Coral formation - Coral island
- Ring-shaped - Round - In the form of, or bounded by, a circle; round. - repeating itself; ending in itself; reverting to the
point of beginning; hence, illogical; inconclusive; as, circular
reasoning. - Adhering to a fixed circle of legends; cyclic; hence,
mean; inferior. See Cyclic poets, under Cyclic. - Addressed to a circle, or to a number of persons having a
common interest; circulated, or intended for circulation; as, a
circular letter. - Perfect; complete.
- Circular - Ring-shaped - Pertaining to, or having the form of, a ring; forming a
ring; ringed; ring-shaped; as, annular fibers. - Banded or marked with circles.