Search Result for "annulus":
Wordnet 3.0
NOUN (2)
1. a toroidal shape;
- Example: "a ring of ships in the harbor"
- Example: "a halo of smoke"
[syn: ring, halo, annulus, doughnut, anchor ring]
2. (Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar;
[syn: annulus, skirt]
The Collaborative International Dictionary of English v.0.48:
Annulus \An"nu*lus\, n.; pl. Annuli. [L.] 1. A ring; a ringlike part or space. [1913 Webster] 2. (Geom.) (a) A space contained between the circumferences of two circles, one within the other. (b) The solid formed by a circle revolving around a line which is the plane of the circle but does not cut it. [1913 Webster] 3. (Zool.) Ring-shaped structures or markings, found in, or upon, various animals. [1913 Webster]
