Annulus (noun) Definition, Meaning & Examples

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noun, plural an·nu·li [an-yuh-lahy], /ˈæn yəˌlaɪ/, an·nu·lus·es.
  1. a ring; a ringlike part, band, or space.
  2. the space between two concentric circles on a plane.
  3. the veil remnant on a mushroom stalk.
  4. a growth ring, as on the cross section of a tree trunk, that can be used to estimate age.
noun plural -li (-ˌlaɪ) or -luses
  1. the area between two concentric circles
  2. a ring-shaped part, figure, or space
Plural annuluses annuli (ăn′yə-lī′)
    Annulus (noun) Definition, Meaning & Examples

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