Definition:Annulus

Disambiguation

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Annulus may refer to:

• Geometry:
  • Annulus: the region between two concentric circles

• Topology:
  • Annulus: a topological space which is homeomorphic with an annulus in the context of geometry

Linguistic Note

The word annulus (pronounced an-nu-lus) is Latin for little ring.

Its plural form is annuli (pronounced an-nu-lee).