ANNULAR
annular, annulate, annulated, circinate, ringed, ring-shaped, doughnut-shaped
(adjective) shaped like a ring
Source: WordNet® 3.1
Etymology
Adjective
annular (not comparable)
Pertaining to, or having the form of, a ring; ring-shaped; in the shape of an annulus.
Banded or marked with circles.
Synonyms
• ring-shaped
Source: Wiktionary
An"nu*lar, a. Etym: [L. annularis, fr. annulis ring: cf. F.
annulaire.]
1. Pertaining to, or having the form of, a ring; forming a ring;
ringed; ring-shaped; as, annular fibers.
2. Banded or marked with circles. Annular eclipse (Astron.), an
eclipse of the sun in which the moon at the middle of the eclipse
conceals the central part of the sun's disk, leaving a complete ring
of light around the border.
Source: Webster’s Unabridged Dictionary 1913 Edition