Synonyms to annulus

areola, O, annular muscle, aureole, chaplet, circle, circuit, circumference, circus, closed circle, corona, coronet, crown, cycle, diadem, discus, disk, eternal return, fairy ring, garland, glory, halo, lasso, logical circle, loop, looplet, magic circle, noose, orbit, radius, ring, rondelle, round, roundel, saucer, sphincter, vicious circle, wheel, wreath, anthelion, antisun, aura, countersun, lunar corona, lunar halo, mock moon, mock sun, moon dog, nimbus, paraselene, parhelic circle, parhelion, rainbow, solar corona, solar halo, sun dog, air hole, ambit, arc, arch, armhole, association, band, bank, beat, begird, belt, belt in, bend, bend back, beset, bilge, blain, bleb, blister, blob, blowhole, boss, bow, braid