Definitions for annulus
Overview of noun annulus
The noun annulus has 2 senses? (no senses from tagged texts)
1. ring, halo, annulus, doughnut, anchor ring
(a toroidal shape; "a ring of ships in the harbor"; "a halo of smoke")
2. annulus, skirt
((Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar)
