Meaning ofannulusin English

Noun

1. a ring-shaped area or structure
   The annulus of the tree trunk showed growth patterns.
2. a fibrous ring around a heart valve; attached to valve leaflets
   The annulus of the heart valve helps to regulate blood flow.
3. a ring of light during an annular eclipse
   During the annular eclipse, an annulus of light was visible.
4. a structure surrounding a sporangium; aids in spore dispersal
   The annulus surrounding the sporangium facilitates spore release.
5. membranous ring on a mushroom stem
   The annulus on the mushroom stem is delicate.
6. a ring on a fish's scales (indicating age); formed by slowed growth
   The annulus on the fish scale indicates its age.
7. region between two concentric circles
   The region between the two concentric circles is an annulus.
8. the sun's uncovered ring (in an eclipse)
   During the solar eclipse, the sun's annulus is visible.