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1. (n.) annulus
a ringlike part, band, or space; ring.
2. annulus
the space between two concentric circles on a plane.
3. annulus
the veil remnant on a mushroom stalk.
4. annulus
a growth ring, as the annual ring of a tree trunk, that can be used to estimate age.
Etymology: (1555–65; < L, var. of ānulus=ān(us) ring +-ulus -ule)
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| Definition of 'annulus' |
Princeton's WordNet |
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1. (noun) ring, halo, annulus, doughnut, anchor ring
a toroidal shape
"a ring of ships in the harbor"; "a halo of smoke"
2. (noun) annulus, skirt
(Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar
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| Definition of 'annulus' |
Webster Dictionary |
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1. (noun) annulus
a ring; a ringlike part or space
2. (noun) annulus
a space contained between the circumferences of two circles, one within the other
3. (noun) annulus
the solid formed by a circle revolving around a line which is the plane of the circle but does not cut it
4. (noun) annulus
ring-shaped structures or markings, found in, or upon, various animals
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Definitions of annulus 
