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WORDNET DICTIONARY
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WORDNET DICTIONARY

Noun annulus has 2 senses

• annulus(n = noun.shape) anchor ring, doughnut, halo, ring - a toroidal shape; "a ring of ships in the harbor"; "a halo of smoke"
has particulars: fairy circle, fairy ring
is a kind of toroid

• annulus(n = noun.plant) skirt - (Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar; Array
is a kind of plant part, plant structure
is a part of partial veil

CIDE DICTIONARY

OXFORD DICTIONARY

ROGET THESAURUS

annulus

Circularity

N circularity, roundness, rotundity, circle, circlet, ring, areola, hoop, roundlet, annulus, annulet, bracelet, armlet, ringlet, eye, loop, wheel, cycle, orb, orbit, rundle, zone, belt, cordon, band, contrate wheel, crown wheel, hub, nave, sash, girdle, cestus, cincture, baldric, fillet, fascia, wreath, garland, crown, corona, coronet, chaplet, snood, necklace, collar, noose, lasso, lassoo, ellipse, oval, ovule, ellipsoid, cycloid, epicycloid, epicycle, semicircle, quadrant, sextant, sector, sphere, round, rounded, circular, annular, orbicular, oval, ovate, elliptic, elliptical, egg-shaped, pear-shaped, cycloidal, spherical, I watched the little circles die.

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