annular - Wiktionary, the free dictionary (original) (raw)

From Wiktionary, the free dictionary

From Latin ānulāris (“ring-shaped”); (possibly through French annulaire), from ānulus (“ring”).

annular (not comparable)

  1. Pertaining to, or having the form of, a ring: in the shape of an annulus.
    Synonyms: circular, ring-shaped, O-shaped
    Coordinate terms: egg-shaped, ovoid
    Near-synonyms: oval; round; toroid
    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[1], 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 […]
  2. Banded or marked with circles.

having the form of a ring

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