Word Type

Noun

The word "annulus" can be used as a noun.

Word Relationships

Coordinate Terms

circulus focus

Derived Terms

annulotomy annulus fibrosus annulus of Zinn apical annulus attached annulus double annulus periannulus single annulus square annulus

Context

astronomy botany fungi geometry mycology oil and gas production topology

Broader Terms (Hypernyms)

plant part plant structure toroid

Narrower Terms (Hyponyms)

torus

Type Of (IsA)

cardiac valve part internal body part plant part

Part Of

partial veil

Related Terms

annular annularity annularly annulary annulate annulated annulation annule annulet exannulate mitral annulus quadriannulate sexannulate triannulate triannulated

Related Terms

annular eclipse area cell circle concentric distort donut fern homeomorphic moon partial veil plane radius region ring sporangium structure sun topological space

Synonym Network

cylinder ring

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.