annulus
4 synonyms for annulus, grouped by meaning and by how common each one is.
Noun — A shape or object like a ring, with an open space in the middle.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Etymology
A learned borrowing from Medieval Latin ānnulus, a misspelling of Latin ānulus (“ring, especially one worn on a finger”), from ānus (“ring”) — possibly from Proto-Indo-European *h₁eh₂-n-o- (“ring”), from an uncertain root — and -ulus (diminutive suffix). The plural annuli is likewise a learned borrowing, from Medieval...
Full origin of annulus →