'annulus' definitions:
Definition of '
annulus
'
From:
WordNet
noun
A toroidal shape; "a ring of ships in the harbor"; "a halo of smoke" [syn:
ring
,
halo
, annulus,
doughnut
,
anchor ring
]
noun
(Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar [syn: annulus,
skirt
]
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