Definition from Wiktionary, the free dictionary
annular (not comparable)
- Pertaining to, or having the form of, a ring; ring-shaped; in the shape of an annulus.
- 1992, Rudolf M. Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, page 6
- The capsule in both families is spherical, with a bistratose wall; the outer cell layer usually bears nodular thickenings […] ; the inner layer (of nearly equally large cells) lacks the regular semiannular or annular thickenings of most other leafy liverworts […]
- Banded or marked with circles.
having the form of a ring