Source : Webster's Revised Unabridged Dictionary (1913)

Annulate \An"nu*late\, n. (Zo["o]l.)
   One of the Annulata.

Annulate \An"nu*late\, Annulated \An"nu*la`ted\a. [L.
   annulatus.]
   1. Furnished with, or composed of, rings; ringed; surrounded
      by rings of color.

   2. (Zo["o]l.) Of or pertaining to the Annulata.

Source : WordNet®

annulate
     adj : shaped like a ring [syn: {annular}, {annulated}, {circinate},
            {circular}, {ringed}, {ring-shaped}, {doughnut-shaped}]