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annulus in Wiktionary, the free dictionary.
Annulus (or anulus ) or annular indicates a ring- or donut-shaped area or structure. It may refer to:
Anulus fibrosus disci intervertebralis , spinal structure
Annulus of Zinn , a.k.a. annular tendon or anulus tendineus communis , around the optic nerve
Annular ligament (disambiguation)
Digitus anularis , a.k.a.
ring finger
Anulus ciliaris , a.k.a.
ciliary body
Anulus femoralis , a.k.a.
femoral ring
Anulus inguinalis superficialis , a.k.a.
superficial inguinal ring
Anulus inguinalis profundus , a.k.a.
deep inguinal ring
Anuli fibrosi cordis , a.k.a.
fibrous rings of heart
Anulus umbilicalis , a.k.a.
umbilical ring
Annulus (construction) , outer gear ring in an
epicyclic gearing
Annulus (botany) , structure on fern and moss sporangia
Annular lake , a ring-shaped lake caused by meteor impact
Annulus (mathematics) , the shape between two concentric circles
Annulus (mycology) , structure on mushroom
Annulus (firestop) , site of construction issue
Annular piston , a ring-shaped piston
Annulus (well) , void between concentric cylinders
Annular blowout preventer , device for sealing oil and gas wells
Annulation , type of ring-producing chemical reaction
Topics referred to by the same term