Adjective
annular (not comparable)
- Pertaining to, or having the form of, a ring; ring-shaped; in the shape of an annulus.
- Synonym: ring-shaped
annular fiber
1963 April, Roy L. Clough, Jr., “Hoopskirt: The old "flying barrel" turns in a top performance in this up-to-date-model”, in Popular Mechanics, page 155:If anybody snickers, put 'em in their place by reminding them that the annular wing is a very old aeronautical principle.
1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, 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.